Electrosynthesis of acetate from inorganic carbon (HCO3−) with simultaneous hydrogen production and Cd(II) removal in multifunctional microbial electrosynthesis systems (MES)

Hou, Xia; Huang, Liping; Zhou, Peng; Tian, Fuping; Tao, Ye; Puma, Gianluca Li

doi:10.1016/j.jhazmat.2019.03.028

Cited by 23 publications

(10 citation statements)

References 47 publications

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“…S4; Table S5). This phenomenon was similar to the adverse effects exerted by non-conductive Cr, Cd or Co deposits on the cathodes of other bioelectrochemical systems [8,17,20,26,38,40].…”

Section: Stability Assessmentsupporting

confidence: 66%

“…For example, many industrial processes such as electroplating, tannery, paint, wood, chromite ores and water cooling systems produce heavy metals rich wastewaters containing very low organic loads [5][6][7], in addition to releasing large amounts of inorganic carbon. Recently, the feasibility of MES of acetate from CO2 sequestration as HCO3and simultaneous removal of heavy metals Cd(II) or Cu(II) from heavy metal-contaminated and organics-barren waters and wastewaters has been demonstrated [8][9]. However, in this combined remediation MES process it is crucial to understand how the circuital cathodic electrons are competitively taken by the electrons acceptor species, i.e., the electrotrophs, protons and heavy metal ions.…”

Section: Introductionmentioning

confidence: 99%

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Efficient conversion of bicarbonate (HCO3−) to acetate and simultaneous heavy metal Cr(VI) removal in photo-assisted microbial electrosynthesis systems combining WO3/MoO3/g-C3N4 heterojunctions and Serratia marcescens electrotroph

Huang

Song

Cai

et al. 2021

Chemical Engineering Journal

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The removal of the hazardous heavy metal Cr(VI) in water and the simultaneous production of acetate from the reduction of inorganic carbon (HCO3 -) is demonstrated in a photo-assisted microbial electrosynthesis (MES) system incorporating WO3/MoO3/g-C3N4 Z-scheme heterojunctions and Serratia marcescens Q1 electrotroph cathode. The rates of acetate production (6.1 ± 0.3 mg/L/h) and Cr(VI) removal (4.5 ± 0.1 mg/L/h) recorded at a circuital current of 2.8 ± 0.1 A/m 2 were 2.4-fold (acetate production), 1.7-time (Cr(VI) removal) and 1.6-fold (circuital current) of those in the controls recorded in the absence of WO3/MoO3/g-C3N4, and 1.6-fold (acetate production) and 1.8-time (circuital current) of those in the absence of both Cr(VI) and WO3/MoO3/g-C3N4. Photogenerated WO3/MoO3/g-C3N4 conduction bands electrons favored both direct or indirect (via S. marcescens) reductions of Cr(VI) and H + , with the latter producing H2 which was further metabolized by S. marcescens with HCO3to yield acetate. The higher circuital current drawn under photoirradiation conditions refilled the photo-generated valence band holes in the semiconductor and provided the driving force for the reduction reactions. This study provides an alternative and feasible approach for achieving complete removal of toxic heavy metal from water and industrial waters with simultaneous conversion of inorganic carbon to key block chemicals.

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“…S4; Table S5). This phenomenon was similar to the adverse effects exerted by non-conductive Cr, Cd or Co deposits on the cathodes of other bioelectrochemical systems [8,17,20,26,38,40].…”

Section: Stability Assessmentsupporting

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Efficient conversion of bicarbonate (HCO3−) to acetate and simultaneous heavy metal Cr(VI) removal in photo-assisted microbial electrosynthesis systems combining WO3/MoO3/g-C3N4 heterojunctions and Serratia marcescens electrotroph

Huang

Song

Cai

et al. 2021

Chemical Engineering Journal

Self Cite

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“…Electrotrophs physiologically respond to changes of the external environment (e.g., circuital current, heavy metals, pH) by releasing extracellular polymeric substances (EPS) and by regulating the activity of intracellular enzymes [8,[52][53][54][55]. Thus, under light irradiation and as a response to the H2O2 produced in-situ, the locally anaerobic micro-environment created by the EPS released by the S. marcescens and the changes of its typical intracellular enzymatic activities, might have allowed for the efficient system performance and long-term stability.…”

Section: Mes Performance With Periodical Addition Of Bicarbonatementioning

confidence: 99%

Efficient production of acetate from inorganic carbon (HCO3–) in microbial electrosynthesis systems incorporating Ag3PO4/g-C3N4 anaerobic photo-assisted biocathodes

Kong

Huang

Quan

et al. 2021

Applied Catalysis B: Environmental

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“…Hence, the FIGURE 2 | Various biological processes that have potential for CO 2 sequestration along with sustainable bioenergy/chemical production. potential of numerous biological CO 2 utilization methods to decrease the atmospheric CO 2 should be investigated further with an energy-neutral and biorefinery approach (Venkata Mohan et al, 2016;Hou et al, 2019). The petroleum refinery approach has been well-known for a long time for energy generation.…”

Section: Introductionmentioning

confidence: 99%

Advanced Routes of Biological and Bio-electrocatalytic Carbon Dioxide (CO2) Mitigation Toward Carbon Neutrality

et al. 2020

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Changes in the environment due to multiple factors, such as combustion of fossil fuels, heating, transportation, deforestation, etc., have led to more greenhouse gases in the atmosphere, which eventually led to a rise in global temperatures. Carbon dioxide (CO 2 ) is the major factor for the rapid rise in global temperature. One of the most encouraging technological advances to address global warming is to transform CO 2 into value-added commodities that offer a win-win strategy. In this regard, intensive research has been pursued around the world for development of feasible systems in product recovery or product synthesis from CO 2 -rich industrial emissions. We envision that the biological CO 2 reduction or conversion process can be beneficial for developing carbon-neutral technologies. The integration of CO 2 -emitting industrial technologies with CO 2 -converting biological systems can be helpful in achieving sustainable value-added products with no or minimal loss of energy and materials that are assuring for improved economics. The CO 2 -converting bioprocesses can be directly integrated with the processes emitting a high amount of CO 2 . This symbiotic integration can make the whole process carbon neutral. Herein, this review highlights an insight on research activities of biological CO 2 mitigation using photo catalysts (algae and photo bacteria), an anaerobic biocatalyst (bacteria), gas fermentation, and an enzymatic catalyst. Perspectives and challenges of these technologies are discussed.

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Electrosynthesis of acetate from inorganic carbon (HCO3−) with simultaneous hydrogen production and Cd(II) removal in multifunctional microbial electrosynthesis systems (MES)

Cited by 23 publications

References 47 publications

Efficient conversion of bicarbonate (HCO3−) to acetate and simultaneous heavy metal Cr(VI) removal in photo-assisted microbial electrosynthesis systems combining WO3/MoO3/g-C3N4 heterojunctions and Serratia marcescens electrotroph

Efficient conversion of bicarbonate (HCO3−) to acetate and simultaneous heavy metal Cr(VI) removal in photo-assisted microbial electrosynthesis systems combining WO3/MoO3/g-C3N4 heterojunctions and Serratia marcescens electrotroph

Efficient production of acetate from inorganic carbon (HCO3–) in microbial electrosynthesis systems incorporating Ag3PO4/g-C3N4 anaerobic photo-assisted biocathodes

Advanced Routes of Biological and Bio-electrocatalytic Carbon Dioxide (CO2) Mitigation Toward Carbon Neutrality

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