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All Journal Ecotrophic, Journal of Environmental Science JURNAL KIMIA SAINS DAN APLIKASI The Journal of Pure and Applied Chemistry Research Jurnal Riset Kimia Jurnal Kimia Riset Science and Technology Indonesia Jurnal Teknologi Mineral dan Batubara Chimica et Natura Acta ALCHEMY Jurnal Penelitian Kimia Indonesian Journal of Chemistry Communications in Science and Technology Walisongo Journal of Chemistry Jurnal Kartika Kimia Fullerene Journal of Chemistry Jurnal Abdimas Kartika Wijayakusuma Jurnal Teknologi Mineral dan Batubara al Kimiya : Jurnal Ilmu Kimia dan Terapan Journal of Tropical Pharmacy and Chemistry
Arie Hardian
Department Of Chemistry, Faculty Of Sciences And Informatics, Universitas Jenderal Achmad Yani Cimahi
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Physics Social Sciences Other

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PEMASTIAN VALIDITAS PENGUJIAN KADAR SENG SECARA KOMPLEKSOMETRI TERHADAP MODIFIKASI TEKNIK PREPARASI DALAM KONSENTRAT SENG SULFIDA Ekawandi, Fanny Rahman; Hardian, Arie; Herawati; Mapiliandari, Inda
Jurnal Teknologi Mineral dan Batubara Vol 19 No 3 (2023): Jurnal Teknologi Mineral dan Batubara Edisi September 2023
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol19.No3.2023.1479

Abstract

Sphalerite is one of the sulfide ore minerals that serves as the raw material for zinc sulfide concentrate (ZnS). Sphalerite in nature needs to be processed through a concentration process to become a high-value ZnS concentrate. The determination of zinc (Zn) content in the ZnS concentrate is carried out using complexometric methods, referring to the modified ISO 13658:2000 method in the preparation stage. In this research, the validity of the test results was conducted using several parameters, including precision testing (repeatability and reproducibility), accuracy (recovery and test result comparison with CRM value), and measurement of relative uncertainty in Zn content determination in ZnS concentrate using the modified ISO 13658:2000 method, it is conducted by two analysts. Certified reference material (CRM) O354 with a Zn content range of (49,30±2,46)% was used as a sample in this research. Zinc content in CRM O354 by Analyst X obtained 49.30% with RSD=0.37% and range of Recovery=(99.5-100.6)%, while Analyst Y obtained 49.03% with RSD=0.64% and range of Recovery=(98.1-99.9)%. Mean of results of the determination of Analyst X and Analyst Y is 49.13% with an uncertainty expanded by 1.90% so, Zn content is obtained at (49,13±1,90)% and the relative uncertainty is obtained at 3.87%. The minimum criteria for precision testing in terms of repeatability are RSD<2/3 CV Horwitz, and for reproducibility (F-test), Ftest<Ftable, for accuracy testing in terms of Recovery=(98-102)%, inter-analyst comparison, and test result comparison with CRM value (t-test), ttest<ttable as well as the minimum criteria for measurement of relative uncertainty<5%. Therefore, the test results of the modified ISO 13658:2000 method for Zn determination in ZnS concentrate have fulfilled all the validity parameters of the test results.
VALIDITAS HASIL PENGUJIAN KADAR TIMBAL SECARA KOMPLEKSOMETRI TERHADAP MODIFIKASI TEKNIK PREPARASI DALAM PRODUK KONSENTRAT TIMBAL SULFIDA Aprillianto, Yesaya; Hardian, Arie; Herawati; Tirta, Ardina Purnama
Jurnal Teknologi Mineral dan Batubara Vol 19 No 3 (2023): Jurnal Teknologi Mineral dan Batubara Edisi September 2023
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol19.No3.2023.1507

Abstract

Lead sulfide (PbS) concentrate is derived from the sulfide mineral galena. In nature, galena must first undergo a concentration process to become PbS concentrate. The determination of lead (Pb) content in the PbS concentrate is carried out using complexometric methods, referring to the modified ISO 13545:2000 standard during the preparation stage. In this research, the validity of the test results was assessed using several parameters, including precision test (repeatability and reproducibility), accuracy (%recovery) and estimation of measurement uncertainty. Certified reference material (CRM) Pb353, with a Pb content range of 58.20-64.33% was used as a sample in this study. The results showed an average Pb content of 61.11% for analyst A and 61.00% for analyst B in CRM Pb353. The research successfully met the precision testing requirements for repeatability (RSD 0.46% for analyst A and 0.39% for analyst B < 2/3 coefficient variance (CV) Horwitz 1.44%) and reproducibility (F-test 1.34 < F-table 4,28 and P-value 0.37 > significance level 0.05). Accuracy was also demonstrated with %recovery (analyst A 9.06–100.53% and analyst B 99.23–99.98%), as well as the estimation of measurement uncertainty (μrelative 2.27% < 5%). Therefore, the determination of Pb content using complexometric methods with modified preparation techniques in the PbS concentrate ensures the validity of the results.
Study of Aluminum-Copper Electrodes for Chromium and Chemical Oxygen Demand Removal from Tannery Wastewater by Electrocoagulation Rivaldi, Mochammad Heldry; Rizky, Amelia; Hardian, Arie; Murniati, Anceu
Jurnal Riset Kimia Vol. 16 No. 1 (2025): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v16i1.744

Abstract

This study investigates the efficacy of the electrocoagulation (EC) process using aluminum (Al) anodes and cathodes for the treatment of leather tanning wastewater. Initial characterization revealed a chemical oxygen demand (COD) of 901.96 mg/L and total chromium content of 38.741 mg/L, where it exceeds the discharge limit permitted by the Minister of Environment Regulation No. 5/2014, the permissible limit for COD in industrial wastewater is 110 mg/L, and for total chromium, it is 0.6 mg/L. The EC process, conducted under varying conditions of electrolysis time (10, 20, and 30 minutes), potential (2.0, 3.0, 3.5, and 4.5 V), and current intensity (1.0, 2.0, and 3.0 A), demonstrated substantial reductions in both COD and chromium levels. The lowest COD value achieved was 28.05 mg/L at 3A, 4.5 V, and 30 minutes, representing a reduction of 52.09% to 74.50%. Total chromium content was reduced to as low as 0.013 mg/L, indicating a reduction of 90.45% to 97.83%. pH levels were monitored, revealing an increase due to OH- ion formation, with final pH values ranging from 6.38 to 8.34. XRF analysis of the commercial Al anode indicated a composition of 98.1% Al, 0.615% Fe, 0.522% Si, and 0.163% Zn. The findings underscore the effectiveness of the EC process in reducing COD and chromium content in leather tanning wastewater, meeting and exceeding regulatory standards.
EVALUATION OF MINERAL-BASED HYDROXYAPATITE/ZnO COMPOSITES AS PHOTOCATALISTS FOR METHYLEN BLUE DEGRADATION Hardian, Arie; Nafisah, Aulia Zakiyatun; Karya, Teguh; Halim, Riyan; Murniati, Anceu; Syarif, Dani Gustaman; Noviyanti, Atiek Rostika; Nurhayati, Mita; Jasmansyah, Jasmansyah; Reza, Muhammad
al Kimiya: Jurnal Ilmu Kimia dan Terapan Vol. 11 No. 2 (2024): al Kimiya: Jurnal Ilmu Kimia dan Terapan
Publisher : Department of Chemistry, Faculty of Science and Technology, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/ak.v11i2.37886

Abstract

The use of dyes in the textile industry has increased significantly, raising concerns about their potential to pollute the environment and harm human health. Methylene blue is a widely used synthetic dye, necessitating effective methods for its degradation. Photodegradation is a promising approach to decompose dyes into simpler, less harmful compounds. In this study, hydroxyapatite combined with ZnO was employed as a photocatalyst material to enhance photocatalytic performance. The research aims to degrade methylene blue using a Hydroxyapatite/ZnO (HAp/ZnO) nanocomposite through photodegradation. The optimization of the photodegradation process was investigated by varying irradiation time, methylene blue concentration, and pH. The optimum degradation of methylene blue was achieved using 20 mg of HAp/ZnO nanocomposite at an irradiation time of 120 minutes, an initial methylene blue concentration of 5 ppm, and pH 7. Adsorption isotherm modeling revealed that the process followed the Langmuir isotherm model, with a maximum adsorption capacity (qmax) of 0.3353 mg/g. The degradation followed pseudo-second-order kinetics with a reaction rate constant of 4.0026×105 L/mol·s.
Photoluminescent Carbon Dots for Intelligent Food Packaging: A Review on Sensing Mechanisms and Applications Maqsudi, Shobir Muntahal; Mardawati, Efri; Noviyanti, Atiek Rostika; Hardian, Arie; Ma’Amor, Azman
Jurnal Kartika Kimia Vol 8 No 2 (2025): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v8i2.950

Abstract

Ensuring food safety and quality has become a global priority, demanding innovative solutions to detect early signs of spoilage or contamination. Intelligent food packaging systems offer a promising approach through real-time monitoring of food quality. Among various sensing materials, carbon dots have emerged as a novel class of fluorescent nanomaterials with exceptional optical properties, high water solubility, low toxicity, and tunable photoluminescence. This review discusses the synthesis strategies of CDs particularly focusing on green synthesis using biomass waste and their photoluminescence mechanisms including quantum confinement, surface state, carbon core state, and molecular state emissions. The application of CDs in smart packaging is highlighted, especially in detecting spoilage indicators such as ammonia, hydrogen sulfide, Total Volatile Basic Nitrogen, and pH changes. Various studies demonstrate the ability of CDs embedded in biopolymer matrices to produce distinct color changes in response to food spoilage, making them effective visual sensors. These findings support the development of eco-friendly, sensitive, and low-cost nano sensors for next-generation intelligent packaging technologies.
Molten Salt Synthesis of Sr2Bi4Ti5O18 for Rhodamine B Removal via Adsorption-Photocatalysis Effect Prasetyo, Anton; Bashofi, Syilfia Ainur Rohmah; Safitri, Widiya Nur; Hardian, Arie
Jurnal Kimia Riset Vol. 10 No. 2 (2025): December
Publisher : Universitas Airlangga, Campus C Mulyorejo, Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkimris.v10i2.71283

Abstract

The textile industry's rapid growth has increased dye waste; therefore, effective treatment solutions are needed. Photocatalysis technology has emerged as a promising approach due to its efficiency and environmentally friendly properties. Aurivillius-structured compounds have shown potential as photocatalysts because their ferroelectric properties can inhibit recombinant rate electron-hole. In this research, we synthesized Sr₂Bi₄Ti₅O₁₈ (one of the five-layer Aurivillius compound classes) using the molten salt method. Then, we tested its application for adsorption-photocatalysis degradation of rhodamine B. The diffractogram showed that the Sr2Bi4Ti5O18 phase was successfully synthesized with minor impurities (Bi2O3 and TiO2) attributed to incomplete reaction processes. The SEM image showed plate-like particles with non-uniform particle sizes was obtained. The Kubelka-Munk result showed that the band gap energy of Sr2Bi4Ti5O18 is 3.27 eV. Adsorption tests demonstrated that Sr2Bi4Ti5O18 reduced rhodamine B concentration by 52.5% for 30 minutes, which corresponds to its good adsorption capability. Further adsorption-photocatalysis experiments under light exposure showed ~60% reduction in rhodamine B concentration for 60 minutes. The comparison between adsorption and photocatalysis results suggests that adsorption dominates in decreasing rhodamine B concentration. This is likely due to the large number of rhodamine B molecules adsorbed on the surface of Sr2Bi4Ti5O18, which prevents light from reaching the Sr2Bi4Ti5O18 surface, thereby hindering the degradation of rhodamine B through the photocatalysis mechanism.
NICKEL-BASED CATALYSTS FOR UREA ELECTROLYSIS: A REVIEW OF ELECTROLYSIS PERFORMANCE AND CATALYST DESIGN Situmorang, Raja Doli Tota Parulian; Sujono, Hernandi; Jasmansyah, Jasmansyah; Murniati, Anceu; Hardian, Arie; Irwansyah, Ferli Septi
Walisongo Journal of Chemistry Vol. 8 No. 2 (2025): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology UIN Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v8i2.26973

Abstract

The increasing concentration of urea in wastewater poses both an environmental challenge and an opportunity for sustainable hydrogen production through urea electrolysis, which depends on efficient electrocatalysts. This review focused on nickel-based catalysts due to their high catalytic activity and stability in alkaline media. Using the PRISMA method, twenty studies published between 2020 and 2025 were analyzed based on current density, cell potential, Tafel slope, and stability. Through thematic analysis, catalysts were categorized according to their structure, composition, design strategy, and performance at 10, 50, 100, and 500 mA cm⁻². The review also highlights the importance of testing catalysts in real wastewater rather than in idealized electrolytes. An effective catalyst should exhibit a porous or layered nanostructure, multimetallic composition, and surface doping, while avoiding noble metals and overly complex architectures that hinder charge transfer and scalability.
Effect of Activated Carbon on the Combustion Characteristics of Magnesium–Sodium Nitrate Propellants Murniati, Anceu; Hardian, Arie; Arifin, Zellin Azsari; Suharnoko, Suharnoko; Gunawan, Adella Fajaretta; Aprillianti, Ranti Nur
Jurnal Kimia Fullerene Vol 11 No 2: Fullerene Journal Of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v11i2.774

Abstract

Magnesium–nitrate-based propellant systems represent an alternative class of solid propellants whose combustion characteristics can be modified through composition and the use of additives. This study aims to evaluate the effect of activated carbon addition on the burning rate and combustion energy of magnesium–sodium nitrate– based propellants. Propellant samples were prepared in two compositional variations, namely NaNO₃/Mg and NaNO₃/Mg with activated carbon addition. The burning rate was measured experimentally with five replicates (n = 5), while the calorific value was determined using a bomb calorimeter. Differences in burning rate were analyzed using Welch’s t-test at a significance level of α = 0.05. The results show that the addition of activated carbon significantly reduces the burning rate of the propellant (p < 0.001). In contrast, the calorific value increased from 2395 cal g -1 to 2617 cal g -1 . These findings indicate that activated carbon modifies the combustion characteristics and contributes to the energetic properties of the system, suggesting its potential application for burning rate control in magnesium–sodium nitrate–based propellants.
SYNTHESIS AND CHARACTERIZATION OF Fe2O3 NANOPARTICLES USING Averrhoa bilimbi AS BIOMATERIAL CHELATING AGENT FOR NANOFLUIDS APPLICATION Arie Hardian; Alvi Aristia Ramadhiany; Dani Gustaman Syarif; Senadi Budiman
ALCHEMY Jurnal Penelitian Kimia Vol 13, No 2 (2017): September
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.13.2.4348.133-146

Abstract

The aim of this work was to determine the effect of calcination temperature on the characteristics of Fe2O3 nanoparticles (NPs) in sol-gel synthesis. The obtained Fe2O3 NPs was then used as material for preparation of Fe2O3-water nanofluids. Nanofluids is a mixture between basic fluid like water and 1 - 100 nm solid particles (nanoparticles). Nanoparticles of Fe2O3 have been synthesized from the local mineral Jarosite using sol-gel method by using starfruit (Averrhoa bilimbi) extracts as the chelating agent. The calcination temperature was then varied from 500 ºC to 700 ºC for 5 hours. Based on the X-Ray Diffraction (XRD) analysis, the diffraction pattern of obtained Fe2O3 was relevant with the JCPDS data No. 33-0664 for α-Fe2O3 with hexagonal crystallite system. The crystallite size (Scherrer’s Equation) of obtained α-Fe2O3 nanoparticles at calcination temperatures of 500 ºC, 600 ºC and 700 ºC was 50 nm, 48 nm and 40 nm, respectively. The Surface Area of Fe2O3 NPs at temperature of 500 ºC, 600 ºC and 700 ºC was 45.45 m2/g; 26.91 m2/g and 17.51 m2/g, respectively. Fe2O3-water nanofluids was relativly stable with zeta potential of -39.60 mV; -46.37 mV and -41.57 mV, respectively for 500 ºC, 600 ºC and 700 ºC calcination temperature. The viscosity of Fe2O3-water nanofluids was higher than the viscosity of water. The critical heat flux (CHF) value of water-Fe2O3 nanofluids was higher than the CHF water. The highest CHF value for nanofluids was obtained by using α-Fe2O3 nanoparticles with calcination temperature of 600 ºC which 34.99 % of increment compare to the base fluid (water).
Co-Authors Abdul Mutalib Afiyah, Delinda Nirmala Agma, Muljadji Agustini, Dewi Meliati Aini Aspiati Rohmah Alvi Aristia Ramadhiany Anceu Murniati Anceu Murniati Anggi Suprabawati Anggi Suprabawati Anni Anggraeni Anton Prasetyo Anton Prasetyo Anwari, Nelly Safitri Aprillianti, Ranti Nur Aprillianto, Yesaya Arifin, Zellin Azsari Asep Najmurrokhman Atiek Rostika Noviyanti Bashofi, Syilfia Ainur Rohmah Buchari Buchari Budiman, Senadi Chairussani Abbas Sopamena Dani Gustaman Syarif Dani Gustaman Syarif Dani Gustaman Syarif Dani Gustaman Syarif Dani Gustaman Syarif Datin Fatia Umar Dera Triani Dewi Ratnasari Dian Ayu Setyorini Dwi Rahayu Novianti Efri Mardawati Ekawandi, Fanny Rahman Eki Al Ghifari Fahmi Sulistyohadi Fikri Haikal Gilang Adi Nugraha Gunawan, Adella Fajaretta Gustaman Syarif, Dani Halim, Riyan Hemzah, Sabila Aulia Herawati Herman Herman Himmah, Suci Noerfaiqotul Husein Hernadi Bahti Ika Monika Ika Monika Imas Masriah Inggarwati , Ervina Dwi Izzah, Nuril Lailatul Jasmansyah Jasmansyah Jasmansyah, Jasmansyah Karya, Teguh Kurnia, Irwan Kusumaningtyas, Valentina Adimurti Lilis Siti Aisyah, Lilis Siti Lisda Virdasari Ma’unatin, Anik Mapiliandari, Inda Maqsudi, Shobir Muntahal Maryani, Kanty Ma’amor, Azman Muhammad Reza Muhammad Yudhistira Azis, Muhammad Yudhistira Mulyani, Rahmaniar Nadia Annisa Fajriana Nafisah, Aulia Zakiyatun Nisrina, Aniqa Nur Aini Nurdeni, Nurdeni Nurhayati, Mita Phiciato Phiciato Purbaya, Sari Puspa Sari, Puspa Rahayu, Rizky Sri Restu Muchammad Ibrahim Rina Astriana Rina Herdiana Putri Rinto Yusriski Rivaldi, Mochammad Heldry Rizky, Amelia Rosi Rosidah RR. Ella Evrita Hestiandari Rusnadi Rusnadi Saefudin, Deny Bayu Safi'i, Abdi Wadud Safitri, Widiya Nur Safitri, Widya Nur Sagita, Fuja Savira, Amalia Senadi Budiman Senadi Budiman Senadi Budiman Senadi Budiman Setiyanto, Henry Sheley Marela Siswahyudianto Situmorang, Raja Doli Tota Parulian Suharnoko Suharnoko Suharnoko, Suharnoko Sujono, Hernandi Suryo Gandasasmita Suryo Gandasasmita Thoriq, Thoriq Tirta, Ardina Purnama Usman Ali Rouf Valentina Adimurti Kusumaningtyas Veinardi Suendo Yenny Febriani Yun, Yenny Febriani Yuliana, Trisna Yuliana, Trisna Yusuf Eka Maulana Zeily Nurachman ZEILY NURACHMAN