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All Journal Dimas: Jurnal Pemikiran Agama untuk Pemberdayaan Phenomenon : Jurnal Pendidikan MIPA Walisongo Journal of Chemistry Journal of Educational Chemistry (JEC)
ervin tri suryandari, ervin tri
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Chemistry Economics, Econometrics & Finance Education Environmental Science Mathematics Physics Social Sciences Other

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Journal : Walisongo Journal of Chemistry

 1 
UJI KAPASITAS ADSORPSI ION LOGAM CU2+ MENGGUNAKAN HIDROCHAR EICHHORNIA CRASSIPES TERMODIFIKASI H2O2 Khanifa, Lia Nur; Mulyatun, Mulyatun; Suryandari, Ervin Tri
Walisongo Journal of Chemistry Vol 2, No 2 (2019): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1339.141 KB) | DOI: 10.21580/wjc.v2i2.6026

Abstract

Hidrochar yang disintesis dari Eichhornia crassipes dapat digunakan sebagai adsorben untuk adsorpsi ion logam Cu2+. Dalam penelitian ini, hidrochar disintesis menggunakan metode hidrotermal dengan berbagai variasi suhu serta dimodifikasi menggunakan H2O2. Hasil karakterisasi FTIR pada suhu 220, 240, 260 dan 280?C menunjukkan hidrochar mengandung gugus fungsi hidroksil, karbonil, karboksil dan amina. Hasil SEM menunjukkan morfologi permukaan pada hidrochar termodifikasi lebih kasar dan tidak teratur dibandingkan dengan hidrochar tanpa modifikasi. Modifikasi menggunakan H2O2 pada hidrochar menunjukkan peningkatan komposisi unsur oksigen pada hidrochar termodifikasi. Berdasarkan kemampuan adsorpsi menunjukkan hidrochar termodifikasi lebih efektif dalam menyerap ion logam Cu2+ dibandingkan dengan hidrochar tanpa modifikasi. Hal tersebut ditunjukkan berdasarkan nilai kapasitas adsorpsi pada suhu 240?C, dimana pada hidrochar termodifikasi memiliki nilai kapasitas adsorpsi sebesar 3,4703 mg/g sedangkan pada hidrochar tanpa modifikasi sebesar 1,5349 mg/g. Suhu hidrotermal dapat mempengaruhi nilai kapasitas adsorpsi ion logam Cu2+. Pada penelitian ini nilai kapasitas adsorpsi terbaik pada suhu 240oC sebesar 3,4703 mg/g.
Characterization of Indonesian Bamboo Charcoal for Enhanced Adsorption Capabilities Suryandari, Ervin Tri; Abdul Keyon, Aemi Syazwani
Walisongo Journal of Chemistry Vol 6, No 1 (2023): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v6i1.16158

Abstract

Bamboo charcoal from four types of Indonesian bamboo species had been successfully prepared and characterized. The yield was 19.67%; 30.86%; 33,16% and 27,34 respectively for Apus bamboo, Javanese bamboo, Ori bamboo and Yellow bamboo. The activation of bamboo charcoal was carried out chemically using KOH and H3PO4. Activated bamboo charcoal was characterized for the content of water, volatile substance, total ash, and carbon, as well as iodine absorption capacity based on the technical standard of activated carbon SNI 06-3730-1995. The activated bamboo charcoal was also characterized using Fourier Transform Infrared (FTIR) to determine the functional groups, SEM to determine morphology and nitrogen adsorption desorption to determine the surface area. The activation process was able to reduce water, ash, volatile substance content; thereby increasing carbon content which has the potential to be used for adsorption, and this is evidenced by the increase in the value of iodine absorption. From the FTIR data activated bamboo charcoal shows the presence of a C=O at 1500-1600 cm-1, O-H at 3400-3500 cm-1 and CO at 1300-1400 cm-1 which has the potential to contribute the active site for adsorptionprocess. Based on SEM data the morphology of activated bamboo charcoal was porous. Enhance quantity of pores would increase the surface area and the adsorption ability. From the results of the surface area data, it was found that the 4 types of activated bamboo charcoal produced a higher surface area, and activation using KOH was more effective than H3PO4in increasing the surface area of activated bamboo charcoal.
Co-Authors Abdul Keyon, Aemi Syazwani Khanifa, Lia Nur Mulyatun Mulyatun Prastyo, Budiman Suwahono, Suwahono Yuniar, Siska Aditya Zammi, Muhammad