Author
Tonghua Sun
Bio: Tonghua Sun is an academic researcher from Shanghai Jiao Tong University. The author has contributed to research in topics: Catalysis & Flue-gas desulfurization. The author has an hindex of 23, co-authored 73 publications receiving 1571 citations.
Papers published on a yearly basis
Papers
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TL;DR: It is interesting to find out that FeCl2-H2O2 Fenton pretreatment is needed to remove extra COD and provide more Cl- to help oxidize NH4+-N to N2 at the same time.
181 citations
TL;DR: In this article, mesoporous silica SBA-15 with zinc oxide (ZnO) nanoparticles was prepared via incipient wetness impregnation and ultrasonic method, followed by in situ activation at 523 K. The prepared materials showed a superior ability to remove H 2 S down to parts per billion (ppb) from gas stream at lower temperature (298 K).
140 citations
TL;DR: The experiments under simulated realistic exhaust conditions displayed that the γ-MnO2/SMO catalyst is also a good catalyst with high stability for aromatic VOCs oxidation, and fulfilled endurability to high humidity.
131 citations
TL;DR: In this paper, the use of Rice Husk Char (RHC) nanoparticles has been shown to have a high catalytic activity even at relatively lower temperatures, and the surface areas of the used RHC Ni were increased due to the char gasification rate higher than deposition rate.
94 citations
TL;DR: Different phase structured MnO2, including β-, α-, γ- and three kinds of δ-MnO2 were compared through catalytic oxidation of toluene at different temperature as mentioned in this paper.
83 citations
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TL;DR: This review summarizes the recent literatures on the adsorptive removal of various hazardous compounds mainly from fuel, water, and air by virgin or modified MOF materials.
1,121 citations
TL;DR: This Review systematically documents the progresses and developments made in the understanding and design of heterogeneous catalysts for VOC oxidation over the past two decades and addresses in detail how catalytic performance is often drastically affected by the pollutant sources and reaction conditions.
Abstract: It is well known that urbanization and industrialization have resulted in the rapidly increasing emissions of volatile organic compounds (VOCs), which are a major contributor to the formation of secondary pollutants (e.g., tropospheric ozone, PAN (peroxyacetyl nitrate), and secondary organic aerosols) and photochemical smog. The emission of these pollutants has led to a large decline in air quality in numerous regions around the world, which has ultimately led to concerns regarding their impact on human health and general well-being. Catalytic oxidation is regarded as one of the most promising strategies for VOC removal from industrial waste streams. This Review systematically documents the progresses and developments made in the understanding and design of heterogeneous catalysts for VOC oxidation over the past two decades. It addresses in detail how catalytic performance is often drastically affected by the pollutant sources and reaction conditions. It also highlights the primary routes for catalyst deactivation and discusses protocols for their subsequent reactivation. Kinetic models and proposed oxidation mechanisms for representative VOCs are also provided. Typical catalytic reactors and oxidizers for industrial VOC destruction are further discussed. We believe that this Review will provide a great foundation and reference point for future design and development in this field.
1,074 citations
TL;DR: In this paper, researches on biochar are discussed in terms of production method and application, and different processes for biochar production, such as pyrolysis, gasification, hydrothermal carbonization, etc.
809 citations
TL;DR: The immobilization of graphitic carbon nitride as a rising visible light photocatalyst was first immobilized on structured Al2O3 ceramic foam by a novel in situ approach and the reaction mechanism of photocatalytic NO oxidation by g-C3N4 was revealed.
Abstract: The immobilization of a photocatalyst on a proper support is pivotal for practical environmental applications. In this work, graphitic carbon nitride (g-C3N4) as a rising visible light photocatalyst was first immobilized on structured Al2O3 ceramic foam by a novel in situ approach. Immobilized g-C3N4 was applied for photocatalytic removal of 600 ppb level NO in air under real indoor illumination of an energy-saving lamp. The photocatalytic activity of immobilized g-C3N4 was gradually improved as the pyrolysis temperature was increased from 450 to 600 °C. The optimized conditions for g-C3N4 immobilization on Al2O3 supports can be achieved at 600 °C for 2 h. The NO removal ratio could reach up to 77.1%, exceeding that of other types of well-known immobilized photocatalysts. Immobilized g-C3N4 was stable in activity and can be used repeatedly without deactivation. The immobilization of g-C3N4 on Al2O3 ceramic foam was found to be firm enough to overwhelm the continuous air flowing, which can be ascribed to t...
413 citations
TL;DR: This Review attempts to exhaustively compile the existing literature on sour gas sweetening and to identify promising areas for future developments in the field.
Abstract: Hydrogen sulfide removal is a long-standing economic and environmental challenge faced by the oil and gas industries. H2S separation processes using reactive and non-reactive absorption and adsorption, membranes, and cryogenic distillation are reviewed. A detailed discussion is presented on new developments in adsorbents, such as ionic liquids, metal oxides, metals, metal–organic frameworks, zeolites, carbon-based materials, and composite materials; and membrane technologies for H2S removal. This Review attempts to exhaustively compile the existing literature on sour gas sweetening and to identify promising areas for future developments in the field.
384 citations