Sintesis Fotokatalis CuO/ZnO/CNT untuk Produksi Hidrogen dalam Sel Fotoelektrokimia

Rahmawan, Cynthia Pramesti Regita (2023) Sintesis Fotokatalis CuO/ZnO/CNT untuk Produksi Hidrogen dalam Sel Fotoelektrokimia. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Hidrogen memiliki peluang untuk dijadikan sebagai salah satu opsi energi baru terbarukan. Salah satu metode produksi hidrogen adalah melalui proses fotokatalisis. Dalam penelitian ini, dilakukan sintesis fotokatalis CuO/ZnO/CNT dengan tujuan untuk memproduksi hidrogen. Sintesis CuO/ZnO/CNT yang diawali dengan sintesis ZnO secara kopresipitasi, dilanjutkan dengan sintesis CuO/ZnO melalui metode sol-gel, dan penambahan doping CNT yang dilakukan secara hidrotermal. Karakterisasi XRD mengonfirmasi komponen-komponen yang terbentuk pada fotokatalis yang disintesis, yang interaksinya diketahui melalui karakterisasi FTIR. Hasil karakterisasi FTIR memberi indikasi terbentuknya heterojunction pada variasi CuO:ZnO 1:1, di mana terdapat kedua ikatan Zn-O dan Cu-O. Hasil karakterisasi UV-Vis menunjukkan mekanisme transfer elektron pada fotokatalis dan estimasi energi celah pita dari fotokatalis (2,39 eV – 2,88 eV untuk CuO dan 2,9 eV – 3,405 eV untuk ZnO). Adapun performansi tertinggi fotokatalis CuO/ZnO/CNT dalam memproduksi hidrogen dicapai oleh sampel dengan komposisi CuO:ZnO 1:1 dan doping CNT 5%, dengan laju produksi hidrogen 3594,48 μmol/g.h.
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Hydrogen is potential be used as a new renewable energy option. One method of hydrogen production is through the process of photocatalysis. In this research, the synthesis of CuO/ZnO/CNT photocatalyst was carried out with the aim of producing hydrogen. The synthesis of CuO/ZnO/CNT begins with the synthesis of ZnO by coprecipitation, followed by the synthesis of CuO/ZnO by the sol-gel method, and the addition of CNT doping is carried out hydrothermally. XRD characterization confirmed the components formed in the synthesized photocatalyst, whose interactions were known through FTIR characterization. The results of the FTIR characterization indicated the formation of a heterojunction in the variation of CuO:ZnO 1:1, where both Zn-O and Cu-O bonds were present. The UV-Vis characterization results show the mechanism of electron transfer in the photocatalyst and the estimation of the band gap energy of the photocatalyst (2.39 eV – 2.88 eV for CuO and 2.9 eV – 3.405 eV for ZnO). The highest performance of CuO/ZnO/CNT photocatalyst in producing hydrogen was achieved by samples with a composition of CuO:ZnO 1:1 and 5% CNT doping, with a hydrogen production rate of 3594.48 μmol/g.h.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	CNT, CuO, Fotokatalisis, Hydrogen Production, Photocatalysis, Produksi Hidrogen, ZnO
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA455 Carbon. Nanotubes. T Technology > TP Chemical technology > TP248 Nanogels. Nanoparticles. T Technology > TP Chemical technology > TP255 Electrochemistry, Industrial.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User:	Cynthia Pramesti Regita Rahmawan
Date Deposited:	27 Dec 2023 08:09
Last Modified:	27 Dec 2023 08:09
URI:	http://repository.its.ac.id/id/eprint/105314

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