Fabrication of ZIF-9@super-macroporous microsphere for adsorptive removal of Congo red from water

A novel composite adsorbent of ZIF-9 nanoparticles growing on super-macroporous microspheres (SMM) was synthesized via in situ growth method for adsorptive removal of Congo red from water. The as-synthesized ZIF-9@SMM adsorbent was characterized by XRD, SEM, and BET experiments, and the results showed the ZIF-9 nanoparticles can successfully grow on the surfaces of SMM giving the microspherical shape and microporous structure. The effects of different adsorbents, solution concentration, temperature, and pH value on the adsorption performance were investigated, and the adsorption isotherm and kinetics were analyzed through the adsorption results. The ZIF-9@SMM for removing Congo red from water exhibited better adsorption performance than the ZIF-9, SMM and some other adsorbents. The excellent adsorption performance of ZIF-9@SMM indicated that the fabrication of in situ growth method is attractive to be applied for other novel composite adsorbents combining microporous materials and macroporous microspheres.

• Publication year

  2017

• Venue

  RSC Advances

• Publication date

  2017-01-18

• Fields of study

  Materials Science, Chemistry, Environmental Science

• Identifiers
  DOI 10.1039/C6RA26763G
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• ZIF-9@SMM showed better Congo red adsorption performance than ZIF-9, SMM, and other adsorbents, and its adsorption behavior was examined across solution concentration, temperature, and pH value with isotherm and kinetic analysis.

  Confidence 0.97

  박진우 (dztg5apj7m) extraction뀨 (7c402c1b98) reviewB (s683577b42) reviewAK (4715169a40) review
• The composite architecture linked ZIF-9 nanoparticles with SMM to form a microspherical, microporous adsorbent suitable for water treatment.

  Confidence 0.91

  박진우 (dztg5apj7m) extraction뀨 (7c402c1b98) reviewB (s683577b42) reviewAK (4715169a40) review
• ZIF-9@SMM was prepared by an in situ growth route that directly grew ZIF-9 nanoparticles on super-macroporous microspheres (SMM).

  Confidence 0.98

  박진우 (dztg5apj7m) extraction뀨 (7c402c1b98) reviewB (s683577b42) reviewAK (4715169a40) review

• adsorption isotherm and kinetics

  modeling framework

  Modeling frameworks used to describe how adsorption capacity depends on concentration and time.

  Aliases: isotherm and kinetic analysis

  박진우 (dztg5apj7m) extraction뀨 (7c402c1b98) reviewB (s683577b42) reviewAK (4715169a40) review
• congo red

  dye pollutant

  An anionic dye pollutant in water targeted for adsorption removal.

  박진우 (dztg5apj7m) extraction뀨 (7c402c1b98) reviewB (s683577b42) reviewAK (4715169a40) review
• in situ growth method

  synthesis method

  A synthesis route that grows one material directly on another substrate during preparation.

  Aliases: in situ growth

  박진우 (dztg5apj7m) extraction뀨 (7c402c1b98) reviewB (s683577b42) reviewAK (4715169a40) review
• solution concentration, temperature, and ph value

  experimental conditions

  The set of operating variables used to probe adsorption behavior in the water-treatment tests.

  Aliases: concentration, temperature, and pH

  박진우 (dztg5apj7m) extraction뀨 (7c402c1b98) reviewB (s683577b42) reviewAK (4715169a40) review
• super-macroporous microspheres (smm)

  support material

  A super-macroporous microspherical support material used as the substrate for ZIF-9 growth.

  Aliases: SMM

  박진우 (dztg5apj7m) extraction뀨 (7c402c1b98) reviewB (s683577b42) reviewAK (4715169a40) review
• zif-9 nanoparticles

  nanoparticles

  Nanometer-scale ZIF-9 particles used as the active component grown onto the microsphere surface.

  Aliases: ZIF-9 NPs

  박진우 (dztg5apj7m) extraction뀨 (7c402c1b98) reviewB (s683577b42) reviewAK (4715169a40) review
• zif-9@smm

  composite adsorbent

  A composite adsorbent made by growing ZIF-9 nanoparticles on super-macroporous microspheres.

  Aliases: ZIF-9 on SMM

  박진우 (dztg5apj7m) extraction뀨 (7c402c1b98) reviewB (s683577b42) reviewAK (4715169a40) review

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