Preparation of XCu@TiO2 adsorbent for high-efficient PH3 removal in anaerobic environment and evaluation of desulfurization activity of deactivated adsorbent

Jia, Lijuan; Yang, Xuejin; Hu, Kaiqiang; Feng, Jiayu; Wang, Fang; Li, Kai; Sun, Xin; Wang, Fei; Ning, Ping

doi:10.1016/j.cej.2023.141277

Cited by 7 publications

(4 citation statements)

References 65 publications

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“…Additionally, the performance of 3DCuO/C decreased sharply (260 min, 131.2 mg(PH 3 ) g −1 ) when we stopped introducing O 2 into the reaction system, and a similar phenomenon was observed in previous work. [5] Therefore, it can be concluded from these results that the special structure of the 3DCuO/C sample facilitated the abundant oxygen vacancies and, thus, the rich chemically adsorbed oxygen, which in turn promoted the chemisorption of PH 3 . The performance of 3DCuO/C with different copper loadings is shown in Figure S5 (Supporting Information), which shows a "volcanic trend" with an increase in the Cu loading.…”

Section: Influence Of Preparation Methods On Physical-chemical Proper...mentioning

confidence: 85%

“…Phosphine (PH 3 ) is thus inevitably produced in large amounts as a by-product, and it is an extremely dangerous air pollutant owing to its high bio-toxicity, strong reducibility, and flammability. [5,6] The Pocket Guide from the National Institute of Occupational Safety and Health states that immediate death will be caused when people are exposed to an environment with a PH 3 concentration of 50 ppm. [7] In addition, PH 3 is also considered as a greenhouse gas.…”

Section: Doi: 101002/smll202301169mentioning

confidence: 99%

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Catalytic Decomposition Mechanism of PH₃ on 3DCuO/C and High Value Utilization of Deactivated Catalysts

Feng

Wang

et al. 2023

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With the widespread application of lithium iron phosphate batteries, the production capacity of the yellow phosphorus industry has increased sharply, and the treatment of the highly toxic by‐product PH3 is facing severe challenges. In this study, a 3D copper‐based catalyst (3DCuO/C) that can efficiently decompose PH3 at low temperatures and low oxygen concentrations is synthesized. The PH3 capacity is up to 181.41 mg g−1, which is superior to that previously reported in the literature. Further studies indicated that the special 3D structure of 3DCuO/C induces oxygen vacancies on the surface of CuO, which is beneficial to the activation of O2, and then promotes the adsorption and dissociation of PH3. The doping of P after dissociation determines the formation of Cu‐P, and the eventual conversion to Cu3P leads to the deactivation of CuO active sites. More strikingly, due to the appearance of Cu3P, the deactivated De‐3DCuO/C (Cu3P/C) exhibited significant activity in the photocatalytic degradation of rhodamine B and photocatalytic oxidation of Hg0 (gas) and can also be a candidate as an anode material for Li batteries after modification, which will provide a more thorough and economical treatment scheme for deactivated catalysts.

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Section: Influence Of Preparation Methods On Physical-chemical Proper...mentioning

confidence: 85%

Section: Doi: 101002/smll202301169mentioning

confidence: 99%

Catalytic Decomposition Mechanism of PH₃ on 3DCuO/C and High Value Utilization of Deactivated Catalysts

Feng

Wang

et al. 2023

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“…Meanwhile, TiO 2 is one of the most widely used photocatalyst substrates . The Cu 3 P/TiO 2 obtained in this study after the adsorptive removal of PH 3 is then a typical TiO 2 -based composite semiconductor photocatalyst . This means that the deactivated adsorbent (Cu 3 P/TiO 2 ) in this study is a potential heterogeneous structured photocatalyst.…”

Section: Introductionmentioning

confidence: 88%

“…19 The Cu 3 P/TiO 2 obtained in this study after the adsorptive removal of PH 3 is then a typical TiO 2 -based composite semiconductor photocatalyst. 20 This means that the deactivated adsorbent (Cu 3 P/TiO 2 ) in this study is a potential heterogeneous structured photocatalyst. The modification of TiO 2 by Cu 3 P results in photocatalysts with narrower band gaps and superior photovoltaic and catalytic properties.…”

Section: ■ Introductionmentioning

confidence: 93%

Two Birds with One Stone: Copper-Based Adsorbents Used for Photocatalytic Oxidation of Hg⁰ (Gas) after Removal of PH₃

Feng¹,

Wang

et al. 2023

Environ. Sci. Technol.

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Cu X /TiO 2 adsorbents with CuO as the active component were prepared via a simple impregnation method for efficient purification of phosphine (PH 3 ) under the conditions of low temperatures (90 °C) and low oxygen concentration (1%). The PH 3 breakthrough capacity of optimal adsorbent (Cu 30 /TiO 2 ) is 136.2 mg(PH 3 )•g sorbent −1, and the excellent dephosphorization performance is mainly attributed to its abundant sur face-active oxygen and alkaline sites, large specific surface area, and strong interaction between CuO and the support TiO 2 . Surprisingly, CuO is converted to Cu 3 P after the dephosphorization by Cu X /TiO 2 . Since Cu 3 P is a P-type semiconductor with high added value, the deactivated adsorbent (Cu 3 P/TiO 2 ) is an efficient heterostructure photocatalyst for photocatalytic removal of Hg 0 (gas) with the Hg 0 removal performance of 92.64% under visible light. This study provides a feasible strategy for the efficient removal and resource conversion of PH 3 under low-temperature conditions and the alleviation of the environmental risk of secondary pollution.

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Low-temperature efficient removal of PH3 over novel Cu-based adsorbent in an anaerobic environment

Tang

Feng

Ning

et al. 2023

Chemical Engineering Journal

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Preparation of XCu@TiO2 adsorbent for high-efficient PH3 removal in anaerobic environment and evaluation of desulfurization activity of deactivated adsorbent

Cited by 7 publications

References 65 publications

Catalytic Decomposition Mechanism of PH₃ on 3DCuO/C and High Value Utilization of Deactivated Catalysts

Catalytic Decomposition Mechanism of PH₃ on 3DCuO/C and High Value Utilization of Deactivated Catalysts

Two Birds with One Stone: Copper-Based Adsorbents Used for Photocatalytic Oxidation of Hg⁰ (Gas) after Removal of PH₃

Low-temperature efficient removal of PH3 over novel Cu-based adsorbent in an anaerobic environment

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Preparation of XCu@TiO2 adsorbent for high-efficient PH3 removal in anaerobic environment and evaluation of desulfurization activity of deactivated adsorbent

Cited by 7 publications

References 65 publications

Catalytic Decomposition Mechanism of PH3 on 3DCuO/C and High Value Utilization of Deactivated Catalysts

Catalytic Decomposition Mechanism of PH3 on 3DCuO/C and High Value Utilization of Deactivated Catalysts

Two Birds with One Stone: Copper-Based Adsorbents Used for Photocatalytic Oxidation of Hg0 (Gas) after Removal of PH3

Low-temperature efficient removal of PH3 over novel Cu-based adsorbent in an anaerobic environment

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Catalytic Decomposition Mechanism of PH₃ on 3DCuO/C and High Value Utilization of Deactivated Catalysts

Catalytic Decomposition Mechanism of PH₃ on 3DCuO/C and High Value Utilization of Deactivated Catalysts

Two Birds with One Stone: Copper-Based Adsorbents Used for Photocatalytic Oxidation of Hg⁰ (Gas) after Removal of PH₃