Synthesis of zero-valent iron/biochar by carbothermal reduction from wood waste and iron mud for removing rhodamine B

Abstract This study proposes a new process to synthesize zero-valent iron/biochar (Fe0-BC) by carbothermal reduction using wood waste and iron mud as raw materials under different temperature. The characterization results showed that the Fe0-BC synthesized at 1200ºC (Fe0-BC-1200) possessed favorable adsorption capacity with the specific surface area of 103.18 m2/g, and that the zero-valent iron (Fe0) particles were uniformly dispersed on the biochar surface. The removal efficiency of rhodamine B (RB) was determined to evaluate the performance of the prepared Fe0-BC. Fe0-BC-1200 presented the best performance on RB removal, which mainly ascribe to that more Fe0 particles generated at higher temperature. The equilibrium adsorption capacity reached 49.93 mg/g when the initial RB concentration and the Fe0-BC-1200 dosage were 100 mg/L and 2g/L, respectively, and the pseudo-second-order model was suitable to fit the removal experimental data. LCMC and XRD analyses revealed that the removal mechanism included the physical adsorption of biochar and the redox reaction of Fe0. Moreover, copper existed in the iron mud was also reduced to Cu0, which was beneficial to catalyze the oxidation of iron, the degradation of RB was promoted at the same time.

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Ultrasound assisted zero valent iron corrosion for peroxymonosulfate activation for Rhodamine-B degradation

Chemosphere ◽

10.1016/j.chemosphere.2019.04.164 ◽

2019 ◽

Vol 228 ◽

pp. 412-417 ◽

Cited By ~ 37

Author(s):

Yixiong Pang ◽

Yang Ruan ◽

Yong Feng ◽

Zenghui Diao ◽

Kaimin Shih ◽

...

Keyword(s):

Rhodamine B ◽

Zero Valent Iron ◽

Iron Corrosion ◽

Ultrasound Assisted

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Degradation of rhodamine B using FeS-coated zero-valent iron nanoparticles in the presence of dissolved oxygen

Environmental Progress & Sustainable Energy ◽

10.1002/ep.12412 ◽

2016 ◽

Vol 35 (6) ◽

pp. 1673-1678 ◽

Cited By ~ 9

Author(s):

Qiying Zhang ◽

Weilin Guo ◽

Xinxin Yue ◽

Zhonghua Liu ◽

Xianghui Li

Keyword(s):

Dissolved Oxygen ◽

Rhodamine B ◽

Iron Nanoparticles ◽

Zero Valent Iron ◽

Zero Valent Iron Nanoparticles

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Rhodamine B removal using polyaniline-supported zero-valent iron powder in the presence of dissolved oxygen

Environmental Progress & Sustainable Energy ◽

10.1002/ep.12185 ◽

2015 ◽

Vol 35 (1) ◽

pp. 48-55 ◽

Cited By ~ 6

Author(s):

Weilin Guo ◽

Feifei Hao ◽

Xinxin Yue ◽

Zhonghua Liu ◽

Qiying Zhang ◽

...

Keyword(s):

Dissolved Oxygen ◽

Iron Powder ◽

Rhodamine B ◽

Zero Valent Iron

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Isoterm Adsorpsi Rhodamin B Pada Arang Aktif Kayu Linggua

Jurnal MIPA ◽

10.35799/jm.2.1.2013.764 ◽

2013 ◽

Vol 2 (1) ◽

pp. 40

Author(s):

Stero H. Roring ◽

Mariska M. Pitoi ◽

Jemmy Abidjulu

Keyword(s):

Activated Carbon ◽

Adsorption Isotherm ◽

Rhodamine B ◽

Wood Waste ◽

Batch Experiment ◽

Adsorption Coefficient ◽

Freundlich Model ◽

Rhodamin B ◽

Langmuir And Freundlich Models ◽

Better Than

Telah dilakukan penelitian adsorpsi rhodamin B pada arang aktif yang dibuat dari kayu linggua. Penelitian ini bertujuan untuk menentukan koefisien adsorpsi arang aktif limbah gergajian kayu linggua terhadap zat warna rhodamin B dengan menggunakan isoterm adsorpsi Langmuir dan Freundlich. Penelitian dilakukan secara batch di mana 0,1; 0,2; 0,4; 0,7 dan 1 gram arang aktif dimasukkan ke dalam labu Erlenmeyer terpisah yang masing-masing telah berisi 100 mL larutan rhodamin B 100 ppm. Campuran kemudian diperlakukan di atas magnetic stirrer selama 50 menit dan selanjutnya konsentrasi larutan rhodamin B dianalisis menggunakan spektrofotometer UV-Vis. Hasil penelitian menunjukkan bahwa isoterm adsorpsi rhodamin B pada arang aktif kayu linggua lebih mengikuti isoterm adsorpsi Freundlich dengan koefisien adsorpsi 2,999x10-4 dan nilai intensitas adsorpsi 1,459.Adsorption isotherm of rhodamine B by activated carbon made from linggua wood waste was investigated. The adsorption isotherm was analyzed by Langmuir and Freundlich models. The isotherm was measured by batch experiment where 0,1; 0,2; 0,4; 0,7; and 1,0 grams where added into the separated Erlenmeyer flasks filled with 100 mL of 100 ppm rhodamine B. The mixtures were then treated on magnetic stirrers for 50 minutes followed by rhodamine B analysis using spectrophotometer UV-Vis. The result showed that the isotherm followed the Freundlich model better than Langmuir with the Freundlich adsorption coefficient of 2,999x10-4 and the Freundlich exponent of 1,459.

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Effective destruction of perfluorooctanoic acid by zero-valent iron laden biochar obtained from carbothermal reduction: Experimental and simulation study

The Science of The Total Environment ◽

10.1016/j.scitotenv.2021.150326 ◽

2022 ◽

Vol 805 ◽

pp. 150326

Author(s):

Min Yang ◽

Xiaolei Zhang ◽

Yicheng Yang ◽

Qiang Liu ◽

Long D. Nghiem ◽

...

Keyword(s):

Simulation Study ◽

Carbothermal Reduction ◽

Perfluorooctanoic Acid ◽

Zero Valent Iron

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Coupled removal of Rhodamine B and Cu2+ by activating persulfate using micron zero-valent iron

Journal of Water Supply Research and Technology—AQUA ◽

10.2166/aqua.2019.072 ◽

2019 ◽

Vol 68 (7) ◽

pp. 535-546 ◽

Cited By ~ 1

Author(s):

Xiaowei Huo ◽

Yunxin Liu ◽

Sijie Liu ◽

Peng Zhou ◽

Haishen Li ◽

...

Keyword(s):

Heavy Metal ◽

Organic Compound ◽

Rhodamine B ◽

Zero Valent Iron ◽

The Other ◽

Simultaneous Removal ◽

Other Hand ◽

The One

Abstract In this study, micron zero-valent iron (ZVI) was used to activate persulfate (PS) for the coupled removal of Rhodamine B (RhB) and Cu2+. It was observed that the removal of RhB could be significantly enhanced with Cu2+ compared with that of the case without Cu2+. In addition, the reaction reduced the RhB by 96% within 10 min, and meanwhile reduced the Cu2+ by 60% within 120 min. Investigation of the mechanism revealed that, on the one hand, Cu2+ species could be turned into Cu0 and Cu+ species; on the other hand, PS and Cu2+ could first accelerate the corrosion of ZVI to release Fe2+. Then, in situ generated Cu+ and Fe2+ further decomposed PS to produce ·SO4− and ·OH, which could take part in the removal of RhB. In addition, the ZVI/PS/Cu2+ system also showed a wider pH working range than the ZVI/PS system. Our study proved that simultaneous removal of heavy metal and organic compound in the ZVI/PS/Cu2+ system was feasible.

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Efficiency and mechanisms of rhodamine B degradation in Fenton-like systems based on zero-valent iron

RSC Advances ◽

10.1039/d0ra03125a ◽

2020 ◽

Vol 10 (48) ◽

pp. 28509-28515

Author(s):

Liping Liang ◽

Liubiao Cheng ◽

Yuting Zhang ◽

Qian Wang ◽

Qian Wu ◽

...

Keyword(s):

Rhodamine B ◽

Organic Dye ◽

Zero Valent Iron ◽

Heterogeneous Fenton ◽

Fenton System

Based on the Fe0/H2O2 heterogeneous Fenton system, the degradation of rhodamine B (RhB, an organic dye pollutant) was researched in this paper.

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Removal of contaminants by activating peroxymonosulfate (PMS) using zero valent iron (ZVI)-based bimetallic particles (ZVI/Cu, ZVI/Co, ZVI/Ni, and ZVI/Ag)

RSC Advances ◽

10.1039/d0ra03924a ◽

2020 ◽

Vol 10 (47) ◽

pp. 28232-28242

Author(s):

Xiaowei Huo ◽

Peng Zhou ◽

Yunxin Liu ◽

Feng Cheng ◽

Yang Liu ◽

...

Keyword(s):

Bisphenol A ◽

Rhodamine B ◽

Zero Valent Iron ◽

Bimetallic Particles ◽

Bisphenol F ◽

Removal Of Contaminants

In this study, four different ZVI/M-PMS systems (e.g., ZVI/Cu, ZVI/Co, ZVI/Ni and ZVI/Ag) were fabricated to investigate the removal of contaminants (Rhodamine B, 2,4-dichlorophenol, bisphenol A, bisphenol F, levofloxacin, and chloramphenicol).

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