Showing papers in "Chinese Journal of Catalysis in 2017"

TL;DR: In this paper, the reaction mechanism of Z-scheme photocatalysts, recent research progress in the application of TiO2-based Z-schemes, and improved methods for photocatalyst performance enhancement are explored.

TL;DR: In this paper, the performance of graphitic carbon nitride (g-C3N4) photocatalyst has been investigated in the field of semiconductor photocatalysis.

TL;DR: In this article, a two-step strategy of high temperature calcination and in situ photodeposition was used to synthesize WO 3 /g-C 3 N 4 /Ni(OH) x hybrids.

TL;DR: In this paper, a review summa-rizes the very recent progress (mainly in the last 2-3 years) on three major types of solar hydrogen production systems: particulate photocatalysis (PC), photoelectrochemical (PEC), and photovoltaic-photo-electronchemical hybrid systems.

TL;DR: In this paper, a direct Z-scheme system constructed from two-dimensional g-C3N4 nanoplates and zero-dimensional MoS2 quantum dots (QDs) was prepared through the combination of a hydrothermal process and micro-emulsion preparation.

TL;DR: In this paper, a facile and low-temperature (80 °C) impregnation method was developed to prepare NiS 2 /g-C 3 N 4 photocatalysts.

TL;DR: In this article, three main classes of porous materials are considered: inorganic porous materials, metal organic frameworks, and microporous organic polymers for CO2 capture, and the recent progress in these porous-material-based photocatalysts is highlighted.

TL;DR: In this article, the coloading of metallic carbon black (CB) and NiS2 co-catalysts onto the surface of CdS nanosheets (NSs) photocatalysts was investigated.

TL;DR: In this paper, the thiocyanate anions (SCN−) as interfacial catalytic active sites were selectively adsorbed onto the Ag surface of g-C3N4/Ag photocatalyst to promote interfacial H2-evolution reactions.

TL;DR: In this article, a composite consisting of Bi2WO6 nanosheets and Ag3PO4 was developed to curb recombination of charge carriers and enhance the activity and stability of the catalyst.

TL;DR: In this article, a one-pot method for the preparation of g-C 3 N 4 /reduced graphene oxide (rGO) composite photocatalysts with controllable band structures is presented.

TL;DR: In this article, an Ag3PO4/Ag2MoO4 Z-scheme tandem photocatalytic system was constructed and demonstrated enhanced photocatalysis activity and photostability compared with pristine Ag 3PO4 toward the remediation of organic dye rhodamine B.

TL;DR: In this paper, the pomegranate-like structure of the Bi-CN composites and an explanation for their improved photocatalytic activity were proposed. But they did not provide new insights into the mechanistic understanding of g-C3N4-based photocatalysis.

TL;DR: In this article, Z-scheme semiconductors composed of WO 3-x quantum dots supported on TiO 2 (WO 3 -x QDs/TiO 2 ) were fabricated by solvothermal and hydrogen-reduction methods.

TL;DR: In this paper, the authors summarize the recent progress in the rational design and fabrication of nano-heterostructured photocatalysts and some of the challenges and prospects for the future development of heterojunction photocatalyst systems are discussed.

TL;DR: An environmentally friendly Mn-oxide-supported metal-organic framework (MOF), Mn 3 O 4 /ZIF-8, was successfully prepared using a facile solvothermal method, with a formation mechanism proposed as mentioned in this paper.

TL;DR: In this paper, Boron nitride containing hydroxyl groups efficiently catalysed oxidative dehydrogenation of ethane to ethylene, offering rather high selectivity (95%) but only small amount of CO2 formation (0.4%) at a given ethane conversion of 11%.

TL;DR: In this paper, α-, β-, γ-and δ-MnO2 catalysts were synthesized by a one-step hydrothermal method, and were utilized for the catalytic oxidation of toluene in a combined plasma-catalytic process.

TL;DR: In this article, CdSe quantum dots (QDs) hybridized with graphene oxide (GO) are synthesized by a facile chemical precipitation method, and the photocatalytic reduction efficiency of QDs and GO under sunlight irradiation for 90 min are approximately 81.9% and 95.5% respectively.

TL;DR: In this paper, the authors summarize the recent advances of amorphous catalysts for hydrogen evolution reaction (HER), OER and overall water splitting by electrolysis and the related fundamental chemical reactions involved in the electrolysis of water.

TL;DR: In this paper, a macroscopic visible-light responsive molybdenum disulfide (MoS 2 ) /reduced graphene oxide (RGO) aerogel was obtained for hydrogen and photoreduction of Cr(VI) in comparison with the MoS 2 powder.

TL;DR: In this paper, the influence of loading of MoS2 on the photocatalytic H2 evolution activity was investigated using lactic acid as a sacrificial reagent, achieving an apparent quantum efficiency of about 3.85% at 420 nm monochromatic light.

TL;DR: In this article, the physicochemical properties of graphitic carbon nitride (g-C3N4) with efficient photocatalytic activity were investigated by X-ray diffraction, transmission electron microscopy, ultraviolet-visible spectroscopy, photoluminescence spectro-graph, diffuse-reflection spectrograph, and BJH surface area characterization.

TL;DR: In this paper, a minireview analyzes the latest progress in engineering vacancies in photocatalysts, remarks on state-of-the-art characterization techniques for vacancies, and reviews the formation chemistry and fundamental benefits of anion and cation vacancies in typical photocATalysts.

TL;DR: In this article, magnetic composites were used as heterogeneous catalysts for the activation of peroxymonosulfate (PMS) and the degradation of organic pollutants, and a facile and green heterogeneous catalysis method for the oxidative removal of organic contaminants was proposed.

TL;DR: In this article, the authors summarize recent progress in research on catalysts based on the confinement of single atoms in 2D materials, mainly graphene, C3N4, and MoS2.

TL;DR: In this paper, the photocatalytic performance of magnetically separable bismuth ferrite (BiFeO3) nanoparticles was comprehensively investigated via photocatalysis oxidation of methyl violet (MV) under both ultraviolet and visible-light irradiation.

TL;DR: Hierarchical SAPO-34 crystals were synthesized by facile acid etching post-treatment as mentioned in this paper, and they showed that the synergistic effect of the hierarchical pores and acid sites resulted in a longer catalyst lifetime and higher selectivity to light olefins.

TL;DR: In this paper, a noble metal-free photocatalyst formed by integrating amorphous NiS with a CdS nanorods (NRs)/ZnS heterojunction material for photocatalytic H2 production in water under visible light irradiation was presented.