Selective adsorption and recovery of precious metal ions using protein-rich biomass as efficient adsorbents

Maruyama, Tatsuo; Terashima, Yasuki; Takeda, Shinano; Okazaki, Fumiyoshi; Goto, Masahiro

doi:10.1016/j.procbio.2014.02.016

Cited by 36 publications

(10 citation statements)

References 41 publications

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“…Our previous studies also described the utility of amino acids and peptides for recycling metal ions [23,24]. Despite the many years of studies on amino acids and oligopeptides, it is expected that amino acids and oligopeptides will continue to be utilized in novel ways in biological, chemical, environmental and medical fields in the near future.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of gold nanoparticles using various amino acids

Maruyama

Fujimoto

Maekawa

2015

Journal of Colloid and Interface Science

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151

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Section: Resultsmentioning

confidence: 99%

Synthesis of gold nanoparticles using various amino acids

Maruyama

Fujimoto

Maekawa

2015

Journal of Colloid and Interface Science

Self Cite

151

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“…As a kind of low-cost adsorbents, these biomass related adsorbents have been widely explored for the removal of a number of pollutants including dyes and heavy metals [7][8][9]. However, one significant disadvantage of the raw biomassbased sorbent is the dissolution of the raw biomass, which might lead to organic leaching and secondary pollution.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Adsorption of Orange II Using Cationic Surfactant Modified Biochar Pyrolyzed from Cornstalk

Xiao

Zhu

et al. 2016

Journal of Chemistry

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As dissolution of raw biomass is serious when used as an adsorbent, the cheap biochar pyrolyzed from biomass might be a good matrix. Raw cornstalk biochar was intentionally modified by cetyltrimethylammonium bromide (CTAB) to prepare the composite adsorbent designed for the removal of negatively charged pollutants. After modification, the removal efficiency for anionic dye Orange II (ORII) increased from 46.9% of the virgin cornstalk biochar to 99.7% of the CTAB-modified cornstalk biochar. The uptake of ORII proved to be favorable under acidic conditions but unfavorable under alkaline conditions. By nonlinear simulation, the Elovich model was the best to describe the adsorption kinetics. For linear simulation of the kinetic data, the pseudo-second-order kinetic model fitted the experimental points better than the pseudo-first-order model. Kinetic analysis indicated that the ORII adsorption process on the CTAB-modified cornstalk biochar might be chemical adsorption accompanied by ion exchange. At 298 K, the maximal adsorption capacity of the modified biochar is 26.9 mg/g by the Langmuir model. The adsorption of ORII increased with a rise in the reaction temperature. The enthalpy and entropy of the adsorption process are calculated to be 38.45 KJ mol−1and 185.0 J mol−1 K−1, respectively. The negative values ofΔG0at 288, 298, and 308 K were −14.92, −16.50, and −18.62 KJ mol−1, respectively. The above thermodynamic analysis demonstrates that the adsorption process was endothermic and spontaneous.

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“…Besides, there is always no secondary pollution after the adsorption process. Furthermore, lots of heavy metal elements, including a number of noble metals could be recycled during the regeneration of adsorbents . Recently, cellulose‐based adsorbents for heavy metal removal have been attracting more and more attention .…”

Section: Introductionmentioning

confidence: 99%

An Aminosalicylic Acid‐Modified Cellulose Composite Used for Mercury (II) Removal from Single and Quarternary Aqueous Solutions

Pan

et al. 2018

ChemistrySelect

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A high efficient adsorbent based on cellulose with good reusability towards mercury (II) ions was successfully prepared via grafting copolymerization and coupling technology. Batch adsorption experiments were conducted to reveal adsorption behavior of the as-prepared adsorbents. Effects of the initial concentration, pH of the solution, time of contact, temperature and coexisting ions of the system were investigated, respectively. Polymerization reaction via glycidyl methacrylate was carried out to greatly enhance the following graft efficiency with the polydentate ligand which could catch the heavy metal ions. The results indicated the adsorption capacity was as high as 657.9 mg/g for Hg (II). Meanwhile, Langmuir isotherm model was proved to be appropriate in describing the experimental data, and the adsorption process was found to fit well with the pseudo-second-order model. In addition, the adsorbent could be regenerated with high recovery efficiency after adsorption; and the equilibrium adsorption capacity for Hg (II) was maintained at 204.5 mg/g after 10 adsorption-desorption cycles, which is of great importance for practical application.[a] Dr.

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Selective adsorption and recovery of precious metal ions using protein-rich biomass as efficient adsorbents

Cited by 36 publications

References 41 publications

Synthesis of gold nanoparticles using various amino acids

Synthesis of gold nanoparticles using various amino acids

Enhanced Adsorption of Orange II Using Cationic Surfactant Modified Biochar Pyrolyzed from Cornstalk

An Aminosalicylic Acid‐Modified Cellulose Composite Used for Mercury (II) Removal from Single and Quarternary Aqueous Solutions

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