en گروه سرامیک Ceramic Materials and Engineering Research Paper Research Paper <span style="font-size:11pt"><span style="line-height:200%"><span style="text-autospace:none"><span sans-serif="" style="font-family:Calibri,"><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times="">The lindgrenite compounds [Cu₃(MoO₄)₂(OH)₂] with various</span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times=""> architectures </span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times="">and high crystallinity were prepared by a simple surfactant-assisted hydrothermal method. Then, the </span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times=""><span style="color:black">Cu₃Mo₂O₉</span></span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times=""> samples were </span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times="">prepared by calcination of the </span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times="">as-synthesized Cu₃(MoO₄)₂(OH)₂. The resulting samples had high crystallinity, colloidal properties<span style="color:#000000;">, </span><a><span style="color:#000000;">high-yield</span></a></span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times=""><span style="color:#000000;">, large-scale production capability with using of nontoxic and inexpensive reagents and water as an environmentally solvent. The scanning electron microscope studies showed that the as-prepared lindgrenite nanostructures </span><a><span style="color:#000000;">were</span></a></span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times=""><span style="color:#000000;">&nbsp;well c</span>rystallized with rod, sheet and hollow sphere morphologies. These products were content of the Cu₃(MoO₄)₂(OH)₂rods with diameters of about </span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times="">100 nm</span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times="">, the Cu₃(MoO₄)₂(OH)₂nanosheets </span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times="">with thickness of 30&ndash;100 nm and </span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times="">the Cu₃(MoO₄)₂(OH)₂hallow spheres, </span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times="">consisting of a large number of nanosheets with </span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times="">thickness </span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times="">of about </span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times="">40-70 nm.</span></span></span> <span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times="">The</span></span></span> <span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times=""><span style="color:black">Cu₃Mo₂O₉</span></span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times=""> samples that obtained by</span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times=""><span style="color:black"> thermal treatment of lindgrenite </span></span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times="">retained the original morphologies. Meanwhile,</span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times=""> the photoluminescence and magnetic properties of the nanosheet samples showed super </span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times="">paramagnetic</span></span></span> <span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times="">behavior at room temperature and in comparison with previous works, Cu₃(MoO₄)₂(OH)₂ and </span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times=""><span style="color:black">Cu₃Mo₂O₉</span></span></span></span><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times=""> samples synthesized by the surfactant-assisted hydrothermal method had a very obvious red-shifted PL emission and high intensity.</span></span></span></span></span></span></span> <div><div class="msocomtxt" id="_com_1" language="JavaScript" on=""></div></div> <br> &nbsp; Cu3(MoO4)2(OH)2,Cu3Mo2O9,colloidal,super paramagnetic,red emission 72 82 http://ijmse.iust.ac.ir/browse.php?a_code=A-10-5673-1&slc_lang=en&sid=1 Azam Bayat azam.bayat@modares.ac.ir 1800319475328460021031 1800319475328460021031 Yes Department of Chemistry, Tarbiat Modares University, Tehran 14155-4383, Iran