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Journal : Makara Journal of Science

UV-Visible Optical Absorbance of Graphene Oxide Synthesized from Zinc-Carbon Battery Waste via a Custom-Made Ultrasound Generator based on Liquid Sonication Exfoliation Method Wisnuwijaya, Rhyko Irawan; Purwanto, Agus; Dwandaru, Wipsar Sunu Brams
Makara Journal of Science Vol. 21, No. 4
Publisher : UI Scholars Hub

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Abstract

The objectives of this study are i) to synthesize graphene oxide (GO) from the waste materials of zinc-carbon (ZnC) batteries via the liquid sonication exfoliation (LSE) method using tweeter piezoelectric probes as speakers, and ii) to study the optical absorbance of the GO produced using a UV-Vis spectrophotometer by varying the mass of the graphite materials obtained from ZnC battery waste. The graphite materials are obtained from the carbon rods of the ZnC batteries, which are ground into powder. The powder is then mixed with distilled water, with powder mass variations of 0.4, 0.6, 0.8, and 1.0 grams. The solutions obtained are sonicated with a frequency of 30 kHz for six hours using a custom-made ultrasound generator based on piezoelectric probes. The effect of graphite material mass variation is studied by observing the UV-Vis spectrophotometer data before and after sonication. The results of this study show absorbance peaks at wavelengths of 221 nm to 227.5 nm, and shouldering peaks at 260 nm to 270 nm, indicating the presence of GO materials for all graphite mass variations. The best GO performances based on the UV-Vis results are obtained in samples with 0.8 and 1.0 grams of graphite powder, which undergo a red shift from 223.5 nm to 227.5 nm, respectively. Scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) are conducted upon the sample of 1.0 grams of graphite powder before and after sonication treatment. The SEM results before sonication show graphite materials forming in large chunks, whereas after sonication smaller islands of GO materials consisting of thin, transparent flakes are observed. The EDX results reveal that the sample material after sonication consists of 88% carbon, 11% oxygen, and a remaining 1% of aluminum, silicon, sulphur, ferrum, and zinc
Synthesis and Characterization of Cellulose Acetate Membrane from Cotton Spinning Waste Djayanti, Silvy; Kusumastuti, Syarifa Arum; Fatkhurrahman, Januar; Purwanto, Agus; Budiarto, Agung; Suherman, Alex Lukmanto
Makara Journal of Science Vol. 25, No. 3
Publisher : UI Scholars Hub

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Cellulose acetate membrane (CAM) was successfully synthesized and characterized from the cotton spinning waste of the textile industry. The membrane was produced through the isolation, acetylation, and phase inversion stages. The highest yields of cellulose fiber and α-cellulose contents were obtained using 3.0% and 6.0% v/v NaClO, respectively. The C–O acetyl bond detected by Fourier Transform Infrared (FTIR) analysis indicates the formation of the CAM. The resulting membrane can be potentially applied as an ultrafiltration membrane for water desalination purposes in water and wastewater treatment facilities. Furthermore, the utilization of cotton spinning waste as raw material aims to produce inexpensive products and recycle solid waste from the textile industry.
Co-Authors ', Susilatri ', Yusralaini - Isdiyarto A Halim Adhianti, Puspita Dewi Adhisty Septia Hidayat Adhy Karyo Nugroho Adi Widodo Adiguna, Yogatama Aditya Bramana, Aditya Aditya Sukma Pawitra Adrian Nur Agung Budiarto, Agung Agus Salim Agustian Budi Prasetya, Agustian Budi Agustika, Dyah Kurniawati Agustina Ahmad Basuki ahmad yani Amri, Whan Augustin Ainul Andalantama, Yudikha Andi Sumangelipu Andi Sunyoto Anditya, Krisma Angga Rahabistara Sumadji Anggaripeni Mustikasiwi Anggraini, Winda Nirwana Anggun Nugroho, Anggun Anindita Putri Nurmalita Sari Anne Zulfia Antonius Budiawan Anwari Adi Nugroho, Anwari Apriliani, Enni Aqila Praditya, Rayyan Arditiyan, Arma Karisma Aris Mukimin Arkhan Subari Armania, Valerry Arum Purwandari Arya Dwi Sanjaya, Arya Dwi Asbari, Masduki Askiantari, Anisa Eka Aulia Rizka, Aulia Ayu, Tresna Ratna Ayunita, Dian Azis, Muh. Arkam Azmi Ramadhania Azzahra, Filosophia Bagus, Asep Bahy, Lanang Mustika Bida Cincin Kirana Budiman, Anatta Wahyu Budiyono Budiyono Cahyani, Erlien Dwi Cahyanti, Fiky Ariska Chintya Fadila Laksmitaningrum Cholid Syahroni, Cholid Christianto Adhy Nugroho Dadan Rosana Darmadi, Eko Agus Darmoatmodjo, L. M. Y. D. Daulay, Dedy David Agustriawan Dela Safitri Dermawan, Ilham Aji Devisa, Fitrah Deyana, Deyana Dhanindra Prabowo, Dhanindra Dian Dian Dwi Harjanto, Ganang Dwi Nugroho, Setyawan Dwi Ratmono Dwinaeni, Etik Dylmoon Hidayat Dylmoon Hidayat, Dylmoon EDWAR EDWAR Efik Yusdiansyah Ema Utami Emha Taufiq Luthfi Endah Retno Dyartanti, Endah Retno Eneng Martini Eskundari , Ratna Dewi Fadli, Septi Aulia Fahmalatif, Farida Fajrin, Andira Falentina Lucia Banda Farhan, Akhmad Farida Ariyani Farida, Florentina Anif Faridawati, F Fathurrahman, Hanif Muhammad Fatkhurrahman, Januar Fauziawan, Affan Irfan Filza, Muhammad Fairul Fitri, Cicih Larasati Widya Gazali Gazali Gde Sastrawangsa, Gde Geifira, Ghaitsa Ginting, James Davidta Ginzania, Maria Gumelar, Abih Gunawan Santoso Gunawan, Ayub Hadion Wijoyo Hakim, Much Azizum Hanny Vistanty, Hanny Hapsari, Yanurita Dwi Haque, Marissa GraceHaque Hardi, M Hariyasasti, Yayuk Harmadji, Dwi Ekasari Hartuti Hartuti Hasnur, Rizfan Hatta, Nadisya Rachelia Heny Kusumayanti Hermansyah, Vicky HERY WINARSI Hidayah Dwiyanti Hidayati, Laily Hidayati hutagalung, leo Hyun, Choi Chi I Kadek Ariana, I Kadek I Made Suartika Ida Hayu Dwimawanti Ihyaul Ulum Imam Ghozali Imawati, Maria Fatmadewi Indah Epriliati Indrianto Indrianto Indriasari, Christina Innocentius Bernarto, Innocentius Irfan Fauziawan, Affan Irhamni Irnaning Handayani, Novarina Ischiadica Elharomy Ismail Ismail Ismail, Muhamad Yusuf Iya Purnama Sari Jidanah Darmiyati Joko Aryanto Joko Santoso Jumari, Arif Jusmita, Jusmita Karang Utama, I Wayan Karnawi Kamar, Karnawi Khaerul Fahmi Kirana, Bida Cincin Kulla Himmy Azz, Istajib Kuncoro Diharjo Kusnadi Kusnaedi, Edi Kusrini, Kusrini Lafendry, Ferdinal Laksmita, Nadea Cipta Larasati, Rakhma Fitria Leo Eladisa Ganjari Lestari, Silvi lestari, winda Levi Puradewa Liya Tri Khikmawati, Liya Tri Luisa Peny , Theresia Lounggina M Yunus Aks, Safriadi M. Suyanto, M. Ma'ruf, Maulana Machmud, Pajar Made Mahendra Jaya Maharief, Rama MAINNAH, MUTH Majid, Ghufron Nurul Mala, Nisrina Nuril Manalu, Lorence Marsiyah, Marsiyah Marta, Fadhillah Mashuri, Agus Alwi Mawardi, Iman Mega, Yuan Mety Nuraini Mintari, Nia Miratul Atiqah Mirayani, Rubi Misbachul Moenir, Misbachul Moniva, Anip Muhamad Rizal, Imam Muhamad Samsudin Muliati, Lisdewi Muttaqien, Muchamad Satya Nadeak, Multi Nafis Ayyasy, Ahmad Nasikhah, Lulukatin Nelza, Audea Briliana Nilawati Nilawati Niyarsih, Witri Noar Muda Satyawan Nofiyanti Nofiyanti, Nofiyanti Noormawati, Linda Septie Noveldesra Suhery Novitasari, Dewiana Nugroho, Yunianto Agung Nur Aini, Afifah Nur Cahyonowati Nur Kadarisman Nur Rokhimah Hanik Nur Zen, Nur nurbayti, Hania Nurhayati, Wakhida Nusantara, Wahyu Octavia, Ercilia Rini Oktari, Vivi Pahlevi, Andi Paini Sri Widyati Pangestu, Prestiani Yulia Paryanto Pradana, Satria Edvan Nanda Praditya, Rayyan Aqila Prakoso, Ganang Prameswari, Mirza Prayuda, Rafie Zaidan Primaditya, Calvin Yusuf PRISILA, INGKA Purba, John Tampil Purno, Marhaendro Purwaningrum, Fajar Adhi Putra, Arman Syah Putra, Firdaus Rafzan, Rafzan Rahmaleli sakinah Ramadhan, Rikky Erlangga Ramdhan, Dimas Rame Rame, Rame Rantina, Meilanta Ratna Dewi Eskundari Ratnaningtyas, Endah Marendah Reny Yesiana Rhahmadanny, Rhahmadanny Ristiarini, Susana Riyanto, Eko Rizky Rizky, Rizky Roedavan, Rickman Romedia, Atra Rosdiana Sijabat Rosita, Galuh Chynintya Rosita royana, ida Rudyawan, Alfend Ruliaty, Lisa Rusadi, Bobi Erno S.Williana Kusumaningsih Sakfrasani, Fifi Sakinah, Rahmaleli Santoso, Priyono Budi Saputro, Ignatius Rinanto Cipto Dwi Sarasati, Wulandari Sari, Nurratri Kurnia Septia Lutfi Septianingrum, Parigi Akhiri Septianingtyas, Luhfi Sesilianus Fau Setiana, Yuni Nuraeni Setyawan, Ramadhan Indra Shavila, Dania Adelia Shihab, M. Ainun Shofwan Hanief Sidiq, Ilham sigit purnomo adi Silvy Djayanti Silvy Djayanti, Silvy Siregar, Izhary Siswanto, Edy Siti Aisyah Siti Novy Romlah Siwi P. M. Wijayanti Siwi P.M. Wijayanti Sjoekri, Adi Adriansyah Solikhin Solikhin Solikhin Solikhin Sri Mulyani Sri Rustianti Rustianti, Sri Rustianti Stephani Novitasari Christianingsih Kaluti Subandrio, Andri Slamet Sudargini, Yuli Suharjum, Suharjum Suharto, Toni Suherman, Alex Lukmanto Sukmawati, Klara Iswara Sulaiman, Anwar Sulistiana, Chindy Sumarna Sumarna Sunarsi, Denok Supriatna, Heri Sutedi Sutedi Suwarto Suwarto Syarifa Arum Kusumastuti, Syarifa Arum Tanjov, Yulia Estmirar Taufik Kurrohman Teguh Iman Santoso Temmy Setiawan, Temmy Tiara Nur sabila Tika Paramitha TONNY HIDAYAT Tri . Wiharti Tugiyo Putri, An'umillah Dhi'fan Tumonglo, Delvia Uky Yudatama, Uky Vanesha, Nellya Anggun Wara Dyah Pita Rengga Waruwu, Hatoli Wicaksono, Kukuh Aryo Wijayanti, Laksmi Mayesti WINANTI, WINANTI Winarsih Winarsih Windyandari, Aulia Windyandari Wipsar Sunu Brams Dwandaru Wiratama, Jansen Wisnuwijaya, Rhyko Irawan Witri Yanti, Plapiana Yanuar, Hanif Fadli Yudanto, Yusuf Arya Yudha, Cornelius Satria Yuliani, Esse Yulita Setiawanta Yunilestari, Eta Yusim, Adi Kurniawan Yuvita Avrie Diany Zaidan Prayuda, Rafie Zaludin, Syafri