Journal ArticleDOI
Photocatalytic mineralization of hydrogen sulfide as a dual-phase technique for hydrogen production and environmental remediation
TLDR
In this article, the performance of photocatalysts is evaluated in terms of quantum yield, space-time yield, and other operational variables, including mode of operation, irradiation time, and relative humidity.Abstract:
Hydrogen sulfide (H2S) is regarded as a broad-spectrum poison associated with severe health consequences. Among the available treatment options, photocatalytic technology may be effectively applied to the production of hydrogen gas through the splitting of H2S molecules and the addition of 79.9 kJ mol−1 of energy. As a result, advanced photo-reactive media may provide a win-win strategy to treat the parent pollutant (H2S) while producing hydrogen gas. This review encompasses both TiO2 and non-TiO2 catalysts capable of operating under ultraviolet, visible, and solar light irradiation. The performances of photocatalysts are assessed in terms of quantum yield, space-time yield, and other operational variables, including mode of operation, irradiation time, and relative humidity. The concept of space velocity is used to compare photocatalysts in reference to benchmark parameters for the treatment of H2S. This review addresses current limitations and future prospects of the application of photocatalytic technology to efficiently mitigate H2S pollution.read more
Citations
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Journal ArticleDOI
Visible-Light-Driven Photocatalytic Oxidation of H2S by Boron-doped TiO2/LDH Heterojunction: Synthesis, Performance, and Reaction Mechanism
TL;DR: In this paper , a novel and highly efficient photocatalyst boron-doped TiO2 combined with MgAl-Layered double hydroxides (B-TiO2/LDH) was synthesized via an in-situ hydrothermal method.
Journal ArticleDOI
Beyond hydrogen production: Solar−driven H2S−donating value−added chemical production over MnxCd1−xS/CdyMn1−yS catalyst
Meng Dan,Jianglai Xiang,Jian Yang,Fan Wu,Chunqiu Han,Yunqian Zhong,Kaibo Zheng,Kaibo Zheng,Shan Yu,Ying Zhou +9 more
TL;DR: In this paper, the authors demonstrate a hydrogen sulphide−induced product−targeting (HIPT) strategy for the coproduction of H2 and valuable chemical feedstocks from Na2S/Na2SO3 via overall H2S splitting using a MnxCd1−xS/CdyMn1−yS catalyst driven by visible light excitation.
Journal ArticleDOI
Efficient upcycling electroplating sludge and waste PET into Ni-MOF nanocrystals for the effective photoreduction of CO2
TL;DR: In this article, the Ni-MOF nanocatalysts exhibited an excellent activity towards the photoreduction of CO2, giving 9.68 × 103 μmol h−1 g−1 of CO with 96.7% selectivity over H2 evolution.
Journal ArticleDOI
Perspectives on reactive separation and removal of hydrogen sulfide
TL;DR: In this paper, a review of the recent advances in reactive H2S separation combining computational simulation with experimental development is presented, in particular, material and catalyst design, mechanistic insights of the reactions, and applicable reaction processes.
Journal ArticleDOI
Metal-organic framework-derived NaMnxOy hexagonal microsheets for superior adsorptive-oxidative removal of hydrogen sulfide in ambient conditions
TL;DR: In this paper, the authors reported the fabrication of NaMnxOy from air calcination of (Na,Mn)-organic frameworks and showed that hexagonal microsheets formed irrespective of the type of organic linker or MOF morphology.
References
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Journal ArticleDOI
Electrochemical Photolysis of Water at a Semiconductor Electrode
Akira Fujishima,Kenichi Honda +1 more
TL;DR: Water photolysis is investigated by exploiting the fact that water is transparent to visible light and cannot be decomposed directly, but only by radiation with wavelengths shorter than 190 nm.
Journal ArticleDOI
Heterogeneous photocatalysis: fundamentals and applications to the removal of various types of aqueous pollutants
TL;DR: In this article, the basic fundamental principles are described as well as the influence of the main parameters governing the kinetics (mass of catalyst, wavelength, initial concentration, temperature and radiant flux).
Journal ArticleDOI
Recent developments in heterogeneous photocatalysts for solar-driven overall water splitting
TL;DR: In this article, a review summarizes the basics of overall water splitting via both one-step excitation and Z-scheme processes, with a focus on standard methods of determining photocatalytic performance.
Journal ArticleDOI
New Benchmark for Water Photooxidation by Nanostructured α-Fe2O3 Films
TL;DR: In this article, thin films of silicon-doped Fe2O3 were deposited by APCVD (atmospheric pressure chemical vapor deposition) from Fe(CO)5 and TEOS (tetraethoxysilane) on SnO2-coated glass at 415 °C.
Journal ArticleDOI
Natural Gas Processing with Membranes: An Overview
TL;DR: An overview of the membrane technology in current use for natural gas treatment and outlines the future prospects can be found in this paper, with a focus on the membrane-based removal of natural gas contaminants.
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