Article
Chemistry, Physical
Mengli Tong, Derong Sun, Ranran Zhang, Hui Liu, Rufen Chen
Summary: Si-alpha-Fe2O3/CdS composites with highly exposed (110) facets exhibited enhanced visible-light photocatalytic activity due to the construction of the heterojunction, which effectively inhibits the recombination of photogenerated electron-hole pairs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Environmental Sciences
Vrushali Vinayak Kadam, Soundharya Dharshini Shanmugam, Jagadeeshbabu Ponnan Ettiyappan, Raj Mohan Balakrishnan
Summary: This study successfully degraded p-nitrophenol using biologically synthesized zinc oxide nanoparticles as a photocatalyst. Optimum conditions for the degradation were found to be a ZnO photocatalyst concentration of 0.1 g/L, pH 11, and H2O2 concentration of 5 mM.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Environmental
Yiqun Jiang, Jingjing Zhang, Rajasekhar Balasubramanian
Summary: This study synthesized a novel heterostructured photocatalyst by coupling indium hydroxide with nitrogen-doped graphene aerogels. The photocatalyst showed impressive photodegradation performance for the model pollutant p-NP, mainly attributed to the synergistic effects between indium hydroxide and graphene aerogels. The efficient photocatalytic degradation was achieved through the favorable formation of photo-generated holes and hydroxyl radicals. Comparative evaluation with another indium-based heterostructured material demonstrated the superior performance of the synthesized photocatalyst.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Chuankun Yin, Siji Zhou, Keyi Zhang, Jiale Bai, Yangyang Lv, Xuewen Zhang, Xiaoxia Li, Aihua Xu
Summary: The study found that CuMnO2 exhibited higher activity and stability in degrading p-Nitrophenol using peroxymonosulfate. The interactions between Mn and Cu species in CuMnO2 were identified using X-ray photoelectron spectroscopy, leading to a new mechanism for PMS-mediated reaction.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Electrical & Electronic
Z. Ghubish, R. Kamal, Hala R. Mahmoud, M. Saif, H. Hafez, M. El-Kemary
Summary: The utilization of Ag-doped SrSnO3 for photocatalytic reduction of pollutants has been studied. The results show that 2.0wt% Ag-doped SrSnO3 exhibits efficient photocatalytic reduction of 4-NP and mineralization of MB.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Inorganic & Nuclear
Worachita Wongtawee, Pongsaton Amornpitoksuk, Chamnan Randorn, Tanattha Rattana, Sumetha Suwanboon
Summary: A nanocomposite photocatalyst consisting of MgAl2O4 spinel and WO3 powders was synthesized through grinding. Characterization using various techniques revealed the presence of WO3 and MgAl2O4 in the nanocomposite. The nanocomposite showed a shift in absorption edge and a decrease in optical band gap energy compared to pure WO3. The nanocomposite also exhibited higher photocatalytic degradation efficiency for methylene blue, with the most complete degradation achieved using a 20%WO3/MgAl2O4 nanocomposite.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Nguyen Thi Huong Giang, Ly Gia Huy, Vu Hoang Khoi, Ha Huu Tan Phong, Nguyen Duy Hai, Le Tan Tai, Nguyen Minh Dat, Dinh Ngoc Trinh, Mai Thanh Phong, Nguyen Huu Hieu
Summary: Titanium dioxide-doped graphene aerogel shows good photo-absorption and nanoparticle sizing properties, demonstrating excellent performance in the photocatalytic removal of phenolic wastewater.
MATERIALS TECHNOLOGY
(2022)
Article
Engineering, Environmental
Derong Sun, Lumeng Jia, Chun Wang, Hui Liu, Rufen Chen
Summary: A hollow alpha-Fe2O3 (S3) sample with high-activity was successfully obtained by adding H2PO4- and Cu2+ ions via a hydrothermal process, and S3/g-C3N4 composites were synthesized using a simple method. The visible-light photocatalytic degradation efficiency of p-Nitrophenol was enhanced through the synergistic effect of heterojunction and photo-Fenton in the S3/g-C3N4 degradation system, providing a new insight for p-NP removal in the wastewater.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Zhiyuan Pang, Bin Wang, Xingwang Yan, Chongtai Wang, Sheng Yin, Huaming Li, Jiexiang Xia
Summary: This study successfully designed a novel Sillen-structured multimetal high entropy oxyhalide material, which combines the benefits of high stability and more active sites with improved migration and separation of photogenerated electrons, showing promising catalytic activity for organic pollutants degradation.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Environmental
Akeem Adeyemi Oladipo
Summary: The hybrid CuCr2O4@CaFe-LDO catalyst showed high efficiency in decontaminating olive mill wastewater, with stable photocurrent response and significant degradation rates of phenolics. Its constituent elements and optical activity were confirmed through spectroscopic analysis, while the catalyst demonstrated good reuse efficiency and a diverse multi-process mechanism involving active species.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Chemistry, Physical
Deepika Chahar, Shilpa Taneja, Shalini Bisht, Shubhi Kesarwani, Preeti Thakur, Atul Thakur, P. B. Sharma
Summary: The synthesis and characterization of cobalt-zinc ferrite, as well as its application in photocatalytic degradation of methylene blue, showed that the degradation efficiency increased with an increase in cobalt concentration.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Geosciences, Multidisciplinary
Shivam Pandey, Ajay Singh, Anuj Kumar, Inderjeet Tyagi, Rama Rao Karri, Rama Gaur, Hamedreza Javadian, Monu Verma
Summary: This research compares the effectiveness of hydrothermally produced ZnO and SnO2 nanocatalysts in degrading p-nitrophenol, a noxious chemical in water. The study finds that ZnO catalyst has better degradation efficiency compared to SnO2 catalyst. Detailed investigation reveals the optimal conditions for degrading p-nitrophenol using ZnO photocatalysts.
PHYSICS AND CHEMISTRY OF THE EARTH
(2024)
Article
Chemistry, Physical
Lorianne R. Shultz, Corbin Feit, Jordan Stanberry, Zhengning Gao, Shaohua Xie, Vasileios A. Anagnostopoulos, Fudong Liu, Parag Banerjee, Titel Jurca
Summary: The study demonstrates that catalytically reducing highly toxic nitroaromatics to safer and synthetically usable aniline derivatives is a viable remediation strategy. The fabrication of catalysts based on ultralow loading of ruthenium on alumina monoliths shows good catalytic activity and ease of recyclability.
Article
Multidisciplinary Sciences
A. G. Ramu, Dongjin Choi
Summary: Azo dyes and nitrophenols are widely used in industries but are highly toxic to aquatic organisms. In this study, a low-cost PdO-doped NiO hetero-mixture was synthesized and found to have excellent catalytic activity, high reduction rates, and stable performance in reducing toxic azo compounds. The PdO-NiO catalyst could be a promising solution for the degradation of azo compounds in the environment.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Electrical & Electronic
Junrui Feng, Lujuan Fang, Ying Zhang, Hubiao Zhao
Summary: Fe-In2S3 nanoparticles were synthesized by an improved reflux method and characterized for their compositional surface morphology, crystal structure, optical and photocatalytic properties using various analytical and spectral techniques. Compared to pure In2S3, Fe-doped In2S3 exhibited higher photocatalytic performance in the degradation of p-nitrophenol (PNP) under visible light. The enhanced photocatalytic activity of Fe-In2S3 was attributed to the absorption edge red-shift, bandgap narrowing, and photolysis behavior of iron complexes. Possible active species and mechanisms were discussed based on the experimental results.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2023)
