Microalgal-biochar immobilized complex: A novel efficient biosorbent for cadmium removal from aqueous solution

Shen, Ying; Li, Huan; Zhu, Wenjun; Ho, Shih‐Hsin; Yuan, Wenqiao; Chen, Jianfeng; Xie, Youping

doi:10.1016/j.biortech.2017.08.085

Cited by 121 publications

(34 citation statements)

References 35 publications

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“…for the adsorption of Cd (II) heavy metal. Char immobilised complex (biomass to char ratio 2:3) was found to contain superior adsorption capacity at 217.41 mg/g than the individual use of microalgae (169.9 mg/g) and biochar (95.8 mg/g) …”

Section: Introductionmentioning

confidence: 99%

“…Char immobilised complex (biomass to char ratio 2:3) was found to contain superior adsorption capacity at 217.41 mg/g than the individual use of microalgae (169.9 mg/g) and biochar (95.8 mg/g). 33 Char properties derived from organic waste can be altered either through operating conditions during pyrolysis or postprocessing techniques such as physical and chemical activation. Char properties vary heavily with the peak treatment temperature, for instance, carbon content, surface area, morphology, and stability.…”

Section: Introductionmentioning

confidence: 99%

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Carbon conversion and stabilisation of date palm and high rate algal pond (microalgae) biomass through slow pyrolysis

et al. 2019

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Summary The processing of waste through pyrolysis technology is gaining momentum worldwide and is considered to be a green technology to reduce CO2 emissions. This study is devoted to analysing the lignocellulosic biomass (date palm) and wastewater‐derived microalgae and the carbon‐rich char produced between temperature range (400°C‐600°C) from these biomass types. The properties of microalgae char showed that significant variation with date palm char exhibited high heating values (24‐28 MJ/kg), low ash content (11%‐16%), and high energy yield (48%‐42%). Algal biomass char showed considerably high nitrogen content (6%‐7%) as compared with date palm char (<1%), lower stability, and more significant influence on the price with respect to treatment temperature. Quaternary, pyrrolic, and pyridinic nitrogen species were found on the surface of the microalgae char, whereas no nitrogen species detected on date palm char due to low nitrogen content. The activation energy was also noted to be high for algal char during pyrolysis and combustion process. It can be concluded that date palm char is suitable for energy applications, whereas, algal char can be used for soil amendment, wastewater treatment, and applications requiring nitrogen‐doped char.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Carbon conversion and stabilisation of date palm and high rate algal pond (microalgae) biomass through slow pyrolysis

et al. 2019

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“…[55,56] Amongt he diverse biomasses, chlorella derived from eutrophic water has as tronga bility to adsorb metal salts, and its cell walls contain many functional groups such as carboxyl, hydroxyl, amino, carbonyl, and so on, and which has been proven as an effective adsorbent for sewaget reatment. [59][60][61] In addition, the abundant nitrogen and phosphorus elements in the protein of chlorella are capable of transforming in situ to give N, Pc o-doping in the bio-carbon during the calcination process, whicht ailors the electric structures furthert oe levatet he conductivity of the electrode materials. [62][63][64][65] All of these findings prompted us to design MoSe 2 -based heteroatoms-dopedc arbon nanocomposites by using the chlorella as precursor and adsorbent.…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Ultra‐Small Few‐Layer Nanostructured MoSe₂ Embedded on N, P Co‐Doped Bio‐Carbon for High‐Performance Half/Full Sodium‐Ion and Potassium‐Ion Batteries

Ling

Kang

Luo

et al. 2019

Chemistry A European J

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Sodium/potassium‐ion batteries (SIBs/PIBs) arouse intensive interest on account of the natural abundance of sodium/potassium resources, the competitive cost and appropriate redox potential. Nevertheless, the huge challenge for SIBs/PIBs lies in the scarcity of an anode material with high capacity and stable structure, which are capable of accommodating large‐size ions during cycling. Furthermore, using sustainable natural biomass to fabricate electrodes for energy storage applications is a hot topic. Herein, an ultra‐small few‐layer nanostructured MoSe2 embedded on N, P co‐doped bio‐carbon is reported, which is synthesized by using chlorella as the adsorbent and precursor. As a consequence, the MoSe2/NP‐C‐2 composite represents exceedingly impressive electrochemical performance for both sodium‐ion batteries (SIBs) and potassium‐ion batteries (PIBs). It displays a promising reversible capacity (523 mAh g−1 at 100 mA g−1 after 100 cycles) and impressive long‐term cycling performance (192 mAh g−1 at 5 A g−1 even after 1000 cycles) in SIBs, which are some of the best properties of MoSe2‐based anode materials for SIBs to date. To further probe the great potential applications, full SIBs pairing the MoSe2/NP‐C‐2 composite anode with a Na3V2(PO4)3 cathode also exhibits a satisfactory capacity of 215 mAh g−1 at 500 mA g−1 after 100 cycles. Moreover, it also delivers a decent reversible capacity of 131 mAh g−1 at 1 A g−1 even after 250 cycles for PIBs.

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“…Nanoporous activated carbons have attracted considerable attention in many environmental areas because of the hydrophobic nature of their surface, large surface area, large pore volume, as well as mechanical and thermal stability [ 9 , 10 ]. Biomaterials, especially macroalgae, have drawn much research awareness for the production of carbon nanostructure with a good adsorption performance, because of their high carbon content, high reproduction rate, and low price [ 11 , 12 ]. Utilization of algae carbon as an adsorbent, supercapacitor, or biobriquettes has been well addressed.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Macroalgae Biochar Nanomaterials with Highly Efficient Adsorption and Photodegradation Ability

et al. 2018

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In this study, carbonized kelp biochar (AKB) modified by KOH impregnation and photocatalytic Bi2MoO6/AKB composite (BKBC) nanomaterials were the first time successfully synthesized for efficient removal of dyes in aqueous solution. BET, XRD, FT-IR, and SEM were employed to characterize as-prepared samples. UV-vis and other test results indicated that the removal efficiency of methylene blue (MB) was 61.39% and 94.12% for BKBC and AKB, respectively, which was up to 13 times and 20 times higher in comparison with pure Bi2MoO6 (PBM). In addition, the equilibrium adsorption capacity of MB could reach up to 324.1 mg/g for AKB. This high dyes adsorption performance could be likely attributed to its high specific surface area (507.177 m2/g) and its abundant presence of various functional groups such as –OH and =C–H on AKB. Particularly, the existing of amorphous carbon and transition metal oxides, such as Fe2O3 and Mn5O8, could be beneficial for the photodegradation of MB for AKB. Meanwhile, experimental data indicated that adsorption kinetics complied with the pseudo-second order model well, and all of the tests had satisfactory results in terms of the highly efficient adsorption and photodegradation activity of AKB nanomaterials, which suggested its great potential in wastewater treatment.

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Microalgal-biochar immobilized complex: A novel efficient biosorbent for cadmium removal from aqueous solution

Cited by 121 publications

References 35 publications

Carbon conversion and stabilisation of date palm and high rate algal pond (microalgae) biomass through slow pyrolysis

Carbon conversion and stabilisation of date palm and high rate algal pond (microalgae) biomass through slow pyrolysis

Facile Synthesis of Ultra‐Small Few‐Layer Nanostructured MoSe₂ Embedded on N, P Co‐Doped Bio‐Carbon for High‐Performance Half/Full Sodium‐Ion and Potassium‐Ion Batteries

Preparation and Characterization of Macroalgae Biochar Nanomaterials with Highly Efficient Adsorption and Photodegradation Ability

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Microalgal-biochar immobilized complex: A novel efficient biosorbent for cadmium removal from aqueous solution

Cited by 121 publications

References 35 publications

Carbon conversion and stabilisation of date palm and high rate algal pond (microalgae) biomass through slow pyrolysis

Carbon conversion and stabilisation of date palm and high rate algal pond (microalgae) biomass through slow pyrolysis

Facile Synthesis of Ultra‐Small Few‐Layer Nanostructured MoSe2 Embedded on N, P Co‐Doped Bio‐Carbon for High‐Performance Half/Full Sodium‐Ion and Potassium‐Ion Batteries

Preparation and Characterization of Macroalgae Biochar Nanomaterials with Highly Efficient Adsorption and Photodegradation Ability

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Resources

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Facile Synthesis of Ultra‐Small Few‐Layer Nanostructured MoSe₂ Embedded on N, P Co‐Doped Bio‐Carbon for High‐Performance Half/Full Sodium‐Ion and Potassium‐Ion Batteries