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Mussel-Inspired Catechol–Formaldehyde Resin-Coated Fe3O4 Core–Shell Magnetic Nanospheres: An Effective Catalyst Support for Highly Active Palladium Nanoparticles
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2018-11-30 00:00:00 , DOI: 10.1021/acsami.8b19489 Yanan Zhang 1 , Yu Yang 1 , Haichao Duan 1 , Changli Lü 1
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2018-11-30 00:00:00 , DOI: 10.1021/acsami.8b19489 Yanan Zhang 1 , Yu Yang 1 , Haichao Duan 1 , Changli Lü 1
Affiliation
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Magnetic Fe3O4@catechol–formaldehyde resin (CFR) core–shell nanospheres were fabricated via a controllable hydrothermal method. The shell thickness of Fe3O4@CFR nanospheres can be effectively regulated in the range of 10–170 nm via adjusting reaction parameters. In particular, catechol groups on the surface of nanospheres also play a significant role in mussel-inspired chemistry to further combine with graphene oxide (GO) to wrap the Fe3O4@CFR spheres. The obtained Fe3O4@CFR and Fe3O4@[email protected] nanospheres can be used as the effective catalyst supports of small Pd nanoparticles (PdNPs, <10 nm) formed via an in situ synthesis route. The as-fabricated nanohybrid catalysts of Fe3O4@[email protected] and Fe3O4@[email protected]@PdNPs with excellent dispersibility and stability are reusable after magnetic separation from catalytic systems. In particular, a super active performance was demonstrated for the catalytic reduction of methylene blue dye with highest turnover frequency (5260 min–1) yet reported in the literature using a very low dosage of the Fe3O4@[email protected]@PdNP catalyst. In addition, the Fe3O4@[email protected]@PdNP catalyst also exhibits a highly catalytic efficiency for the Suzuki coupling reaction using pure water as a green solvent at room temperature.
中文翻译：
贻贝启发的邻苯二酚-甲醛树脂包覆的Fe 3 O 4核-壳磁性纳米球：高活性钯纳米粒子的有效催化剂支持
磁性Fe 3 O 4 @邻苯二酚-甲醛树脂（CFR）核-壳纳米球是通过可控的水热法制备的。通过调节反应参数，可以在10–170 nm范围内有效调节Fe 3 O 4 @CFR纳米球的壳厚度。特别是，纳米球表面的儿茶酚基团在贻贝启发的化学中进一步发挥作用，进一步与氧化石墨烯（GO）结合以包裹Fe 3 O 4 @CFR球。所得的Fe 3 O 4 @CFR和Fe 3 O 4@ [受电子邮件保护的]纳米球可用作通过原位合成路线形成的小型Pd纳米颗粒（PdNP，<10 nm）的有效催化剂载体。具有优异的分散性和稳定性的Fe 3 O 4 @ [受电子邮件保护的]和Fe 3 O 4 @ [受电子邮件保护的] @PdNPs的纳米杂化催化剂可在与催化系统进行磁分离后重新使用。尤其是，在具有最高转换频率（5260 min –1）的亚甲基蓝染料的催化还原方面，已证明了超级活性，但文献中已报道使用极低剂量的Fe 3 O 4 @ [email protected] @PdNP催化剂。另外，Fe 3在室温下，使用纯水作为绿色溶剂，O 4 @ [受电子邮件保护] @PdNP催化剂对Suzuki偶联反应也显示出很高的催化效率。
更新日期：2018-11-30
中文翻译：
贻贝启发的邻苯二酚-甲醛树脂包覆的Fe 3 O 4核-壳磁性纳米球：高活性钯纳米粒子的有效催化剂支持
磁性Fe 3 O 4 @邻苯二酚-甲醛树脂（CFR）核-壳纳米球是通过可控的水热法制备的。通过调节反应参数，可以在10–170 nm范围内有效调节Fe 3 O 4 @CFR纳米球的壳厚度。特别是，纳米球表面的儿茶酚基团在贻贝启发的化学中进一步发挥作用，进一步与氧化石墨烯（GO）结合以包裹Fe 3 O 4 @CFR球。所得的Fe 3 O 4 @CFR和Fe 3 O 4@ [受电子邮件保护的]纳米球可用作通过原位合成路线形成的小型Pd纳米颗粒（PdNP，<10 nm）的有效催化剂载体。具有优异的分散性和稳定性的Fe 3 O 4 @ [受电子邮件保护的]和Fe 3 O 4 @ [受电子邮件保护的] @PdNPs的纳米杂化催化剂可在与催化系统进行磁分离后重新使用。尤其是，在具有最高转换频率（5260 min –1）的亚甲基蓝染料的催化还原方面，已证明了超级活性，但文献中已报道使用极低剂量的Fe 3 O 4 @ [email protected] @PdNP催化剂。另外，Fe 3在室温下，使用纯水作为绿色溶剂，O 4 @ [受电子邮件保护] @PdNP催化剂对Suzuki偶联反应也显示出很高的催化效率。
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